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Math, Grade 6, Rational Numbers, Gallery Problems
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Gallery OverviewAllow students who have a clear understanding of the content thus far in the unit to work on Gallery problems of their choosing. You can then use this time to provide additional help to students who need review of the unit's concepts or to assist students who may have fallen behind on work.Gallery DescriptionThe SurveyorStudents will read and follow a land surveyor's instructions in order to draw property boundaries on a coordinate plane.The Ink BlotOops! Part of a land surveyor’s report is covered by an ink blot. Students will figure out what the missing instructions are in order to draw property boundaries on a coordinate plane.A Mistake in the SurveyThe surveyor made a mistake! Students will correct the mistake in order to draw property boundaries on a coordinate plane.More ReflectionsStudents will reflect a figure located in two quadrants across the x-axis.Reflect Across the OriginStudents will reflect a figure across the origin and observe what happens to the coordinates of the figure.Reflect LettersStudents will reflect letters of the alphabet across the origin and observe what happens to the letters.Graphing a Coordinate Plane VideoStudents will create a video about graphing on the coordinate plane.HistoryStudents will create a report, poster, or video about the history of the coordinate plane.

Subject:
Mathematics
Material Type:
Lesson Plan
Date Added:
09/21/2015
Math, Grade 6, Rational Numbers, Gallery Problems
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Gallery OverviewAllow students who have a clear understanding of the content thus far in the unit to work on Gallery problems of their choosing. You can then use this time to provide additional help to students who need review of the unit's concepts or to assist students who may have fallen behind on work.Gallery DescriptionDivingChen stands on top of a cliff, and a woman scuba diver dives in the ocean below. Students will determine their positions on a vertical number line that represents distance above and below sea level.Negative Numbers?Students will read about five students’ opinions about negative numbers and decide whose opinions they agree with, whose they disagree with, and why. Students will also share their own ideas about negative numbers.Temperatures in JanuaryA map shows the lowest temperatures recorded in January since 2008 for five cities. Students will locate these temperatures on a number line and compare the temperatures.Greenwich Mean TimeStudents will use positive and negative numbers and Greenwich Mean Time to find the times of different cities around the world.Numbers TimelineStudents will research the history of negative numbers and absolute value and create a timeline to show what they learned.Rational Numbers and Absolute Value VideoStudents will create a video about rational numbers and absolute value.

Subject:
Numbers and Operations
Material Type:
Lesson Plan
Date Added:
09/21/2015
Math, Grade 6, Rational Numbers, Inequalities
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Students identify whether an inequality statement is true or false using a number line to support their reasoning.Key ConceptsThe meaning of mThe meaning of n > m is that n is located to the right of m on a number line. The inequality statement n > m is read “n is greater than m.”To decide on the order of two numbers m and n, locate the numbers on a number line. If m is to the left of n, then m < n. If m is to the right of n, then m > n.Goals and Learning ObjectivesState whether an inequality is true or false.Use a number line to prove that an inequality is true or false.

Subject:
Numbers and Operations
Material Type:
Lesson Plan
Date Added:
09/21/2015
Math, Grade 6, Rational Numbers, Opposite of a Number
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Students watch a dot get tossed from one number on a number line to the opposite of the number. Students predict where the dot will land each time based on its starting location.Key ConceptsThe opposite of a number is the same distance from 0 as the number itself, but on the other side of 0 on a number line.In the diagram, m is the opposite of n, and n is the opposite of m. The distance from m to 0 is d, and the distance from n to 0 is d; this distance to 0 is the same for both n and m. The absolute value of a number is its distance from 0 on a number line.Positive numbers are numbers that are greater than 0.Negative numbers are numbers that are less than 0.The opposite of a positive number is negative, and the opposite of a negative number is positive.Since the opposite of 0 is 0 (which is neither positive nor negative), then 0 = 0. The number 0 is the only number that is its own opposite.Whole numbers and the opposites of those numbers are all integers.Rational numbers are numbers that can be expressed as ab, where a and b are integers and b ≠ 0.Goals and Learning ObjectivesIdentify a number and its oppositeLocate the opposite of a number on a number lineDefine the opposite of a number, negative numbers, rational numbers, and integers

Subject:
Numbers and Operations
Material Type:
Lesson Plan
Date Added:
09/21/2015
Math, Grade 6, Rational Numbers, Peer Review and Revise
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Students revise their work on the assessment task based on feedback from the teacher and their peers.Key ConceptsConcepts from previous lessons are integrated into this assessment task: the opposite of a number, integers, absolute value, and graphing points on the coordinate plane. Students apply their knowledge, review their work, and make revisions based on feedback from the teacher and their peers. This process creates a deeper understanding of the concepts.Goals and Learning ObjectivesApply knowledge of the opposite of a number, integers, absolute value, and graphing points on the coordinate plane to solve problems.Track and review a choice of strategy when problem solving.

Subject:
Numbers and Operations
Material Type:
Lesson Plan
Date Added:
09/21/2015
Math, Grade 6, Rational Numbers, Possible or Impossible?
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Students analyze whether given statements are possible or impossible using their definitions of absolute value and the opposite of a number. If the statements are possible, students give an example of a pair of numbers that fit the statement. If the statements are impossible, students explain why.Key ConceptsA number and the opposite of the number always have the same absolute value.In general, taking the opposite of n changes the sign of n. For example, the opposite of 3 is −3.In general, taking the absolute value of n gives a number |n|, which is always positive. For example, |3| = 3 and |−3| = 3.Since the opposite of 0 is 0 (which is neither positive nor negative), therefore −0 = 0. The number 0 is the only number which is its own opposite.Goals and Learning ObjectivesFind pairs of numbers that satisfy different statements about absolute values and/or the opposites of numbers.State when it is impossible to find a pair of numbers that satisfies the statement and explain why.

Subject:
Numbers and Operations
Material Type:
Lesson Plan
Date Added:
09/21/2015
Math, Grade 6, Rational Numbers, Reflections
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Students reflect a figure across one of the axes on the coordinate plane and name the vertices of the reflection. As they are working, students look for and make use of structure to identify a convention for naming the coordinates of the reflected figure.Key ConceptsWhen point (m,n) is reflected across the y-axis, the reflected point is (−m,n).When point (m,n) is reflected across the x-axis, the reflected point is (m,−n).When point (m,n) is reflected across the origin (0,0), the reflected point is (−m,−n).Goals and Learning ObjectivesReflect a figure across one of the axes on the coordinate plane.Name the vertices of the reflected figure.Discern a pattern in the coordinates of the reflected figure.

Subject:
Numbers and Operations
Material Type:
Lesson Plan
Date Added:
09/21/2015
Math, Grade 6, Rational Numbers, Using Negative and Absolute Numbers
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Students answer questions about low temperatures recorded in Barrow, Alaska, to understand when to use negative numbers and when to use the absolute values of numbers.Key ConceptsThe absolute value of a number is its distance from 0 on a number line.The absolute value of a number n is written |n| and is read as “the absolute value of n.”A number and the opposite of the number always have the same absolute value. As shown in the diagram, |3| = 3 and |−3| = 3.In general, taking the opposite of n changes the sign of n. For example, the opposite of 3 is –3.In general, taking the absolute value of n gives a number, |n|, that is always positive unless n = 0. For example, |3| = 3 and |−3| = 3.The absolute value of 0 is 0, which is neither positive nor negative: |0| = 0.Goals and Learning ObjectivesUnderstand when to talk about a number as negative and when to talk about the absolute value of a number.Locate the absolute value of a and the absolute value of b on a number line that shows the location of a and b in different places in relation to 0.

Subject:
Numbers and Operations
Material Type:
Lesson Plan
Date Added:
09/21/2015
Math, Grade 6, Ratios
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Ratios

Type of Unit: Concept

Prior Knowledge

Students should be able to:

Calculate with whole numbers up to 100 using all four operations.
Understand fraction notation and percents and translate among fractions, decimal numbers, and percents.
Interpret and use a number line.
Use tables to solve problems.
Use tape diagrams to solve problems.
Sketch and interpret graphs.
Write and interpret equations.

Lesson Flow

The first part of the unit begins with an exploration activity that focuses on a ratio as a way to compare the amount of egg and the amount of flour in a mixture. The context motivates a specific understanding of the use of, and need for, ratios as a way of making comparisons between quantities. Following this lesson, the usefulness of ratios in comparing quantities is developed in more detail, including a contrast to using subtraction to find differences. Students learn to interpret and express ratios as fractions, as decimal numbers, in a:b form, in words, and as data; they also learn to identify equivalent ratios.

The focus of the middle part of the unit is on the tools used to represent ratio relationships and on simplifying and comparing ratios. Students learn to use tape diagrams first, then double number lines, and finally ratio tables and graphs. As these tools are introduced, students use them in problem-solving contexts to solve ratio problems, including an investigation of glide ratios. Students are asked to make connections and distinctions among these forms of representation throughout these lessons. Students also choose a ratio project in this part of the unit (Lesson 8).

The third and last part of the unit covers understanding percents, including those greater than 100%.

Students have ample opportunities to check, deepen, and apply their understanding of ratios, including percents, with the selection of problems in the Gallery.

Subject:
Mathematics
Statistics and Probability
Material Type:
Unit of Study
Provider:
Pearson
Math, Grade 6, Ratios, Apply Your Knowledge about Ratios
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Students design and work on their projects in class. They review the project rubric and, as a class, add criteria relevant to their specific projects.Key ConceptsStudents apply their knowledge about ratios to solve a problem. They represent ratios using models such as tables, tape diagrams, double number lines, or graphs.Goals and Learning ObjectivesUse and interpret ratios to solve a problem.Model ratios—including tables, tape diagrams, double number lines, graphs—to represent a problem situation.Articulate strategies, thought processes, and approaches to solving a problem and defend why the solution is reasonable.

Subject:
Ratios and Proportions
Material Type:
Lesson Plan
Date Added:
09/21/2015
Math, Grade 6, Ratios, Comparing Numbers with Ratios
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This lesson formally introduces and defines a ratio as a way of comparing numbers to one another.Key ConceptsA ratio is defined by the following characteristics:A ratio is a pair of numbers (a:b).Ratios are used to compare two numbers.The value of a ratio a:b is the quotient a ÷ b, or the result of dividing a by b.Other important features of ratios include the following:A ratio does not always tell you the values of quantities being compared.The order of values in a ratio matters.Goals and Learning ObjectivesIntroduce a formal definition of ratio.Use the definition of ratio to solve problems related to comparing quantities.Understand that ratios do not always tell you the values of the quantities being compared.Understand that the order of values in a ratio matters.

Subject:
Ratios and Proportions
Material Type:
Lesson Plan
Date Added:
09/21/2015
Math, Grade 6, Ratios, Double Number Line for Modeling
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Students watch a video in which a double number line is used to solve a problem about getting the right amount of protein mix. Using the double number line is an example of modeling with mathematics, which is Mathematical Practice 4.Key ConceptsA double number line shows corresponding values for two variable quantities with a constant ratio between them. Each pair of tick marks that go together shows a ratio equivalent to all of the other ratios between corresponding tick marks.Goals and Learning ObjectivesWatch an example of students using mathematics to model a relationship between quantities (MP4).Use a double number line to solve a problem.Use a double number line to deepen understanding of equivalence in the context of a relationship between quantities with a constant ratio.SWD: Some students with disabilities will benefit from a preview of the goals in each lesson. Students can highlight the critical features and/or concepts and will help them to pay close attention to salient information.

Subject:
Ratios and Proportions
Material Type:
Lesson Plan
Date Added:
09/21/2015
Math, Grade 6, Ratios, Double Number Lines
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Students use double number lines to model relationships and to solve ratio problems.Key ConceptsDouble number line diagrams are useful for visualizing ratio relationships between two quantities. They are best used when the quantities have different units. (The unit rate appears paired with 1.) Double number line diagrams help students more easily “see” that there are many equivalent forms of the same ratio.Goals and Learning ObjectivesUnderstand double number line diagrams as a way to visually compare two quantities.Use double number line diagrams to solve ratio problems.

Subject:
Ratios and Proportions
Material Type:
Lesson Plan
Date Added:
09/21/2015
Math, Grade 6, Ratios, Equivalent Ratios
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Students are asked to fix a botched mixture that does not follow a given recipe. To fix the mixture, students must find a ratio of eggs to flour that is equivalent to 2:3, but without explicit instruction on the concept of equivalent ratios.Key ConceptsStudents are invited to investigate the underlying idea of equivalent ratios by “correcting” the ratio between two ingredients in a botched mixture that does not follow a given recipe.Goals and Learning ObjectivesExplore a problem based on a recipe with two ingredients.Share approaches, clarify reasoning, and develop clear explanations of how to know a mixture has the right balance of ingredients.

Subject:
Ratios and Proportions
Material Type:
Lesson Plan
Date Added:
09/21/2015
Math, Grade 6, Ratios, Expressing Ratios
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Students work with a set of cards showing different ways of expressing ratios, including both part-part statements and part-whole statements. They group the cards that show the same ratio of boys to girls, but without the explicit use of the term equivalent.Key ConceptsRatios can be represented in a:b form, as fractions, as decimals, as factors, and in words; they can be expressed in part-part statements or in part-whole statements.Goals and Learning ObjectivesGroup cards showing ratios that are equivalent but expressed in different forms.

Subject:
Ratios and Proportions
Material Type:
Lesson Plan
Date Added:
09/21/2015
Math, Grade 6, Ratios, Expressing Ratios Numerically
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Students work with a set of cards showing different ways of expressing ratios numerically. They group the cards showing equivalent ratios and then order the groups from least to greatest value.Key ConceptsIt can be hard to compare the values of ratios represented in different forms (e.g., a:b, decimal, fraction, a to b). Simplifying ratios makes it easier to compare and order their values.Goals and Learning ObjectivesIdentify ratios that are equivalent but expressed differently.Simplify ratios in order to group and order cards efficiently and successfully.

Subject:
Ratios and Proportions
Material Type:
Lesson Plan
Date Added:
09/21/2015
Math, Grade 6, Ratios, Finding Percents
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Students use informal methods of their own choosing to find percents of randomly generated monetary values.Key ConceptsMany approaches work for solving percent problems. This lesson focuses on experimenting with a range of approaches and understanding why and how multiple approaches yield correct results.Goals and Learning ObjectivesFind a percent of a given quantity.Find a quantity given a part and the percent that part is of the whole.Use percents in money calculations.

Subject:
Ratios and Proportions
Material Type:
Lesson Plan
Date Added:
09/21/2015
Math, Grade 6, Ratios, Gallery Problems
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Gallery OverviewAllow students who have a clear understanding of the content thus far in the unit to work on Gallery problems of their choosing. You can then use this time to provide additional help to students who need review of the unit's concepts or to assist students who may have fallen behind on work.Gallery DescriptionsWork on Your ProjectStudents will work on their project with their group and evaluate their progress using the rubric.Equivalent RatiosSometimes ratios that are equivalent don’t look equivalent at first. Students will use their ratio detective skills to identify equivalent ratios, and then they will choose a model to represent a set of equivalent ratios.Three FarmersTough times on the farm mean three farmers are sharing a seed purchase. Students will make sure each farmer gets the right amount of seed.The DanceEveryone is excited about the upcoming school dance, and two students discuss the ratio of boys to girls. Students will evaluate their statements and decide if their statements are true.The Adults at SchoolWho are the adults who work at school? Students will represent and investigate ratios of teachers to non-teaching staff, including adults at their own school.Sports ReportersReporters are sometimes wrong. Students will check the math in two reports about soccer matches at Estadio Azteca in Mexico City.Screen ChallengeThe aspect ratio of movie screens and TV screens has a direct impact on viewers’ experience. Students will explore aspect ratios in this activity.Election ResultsOops! A newspaper made an error in a report about the local election results. Students will find and fix the error.Birthday at the MoviesMia’s family is treating her whole class to a movie for her birthday! Students will calculate how much the tickets will cost.Dinner ReservationsIt’s graduation night! Students will calculate how many tables a restaurant needs for a party of 26 people.Birth MonthsStudents will investigate the percent of students in a class who have birthdays in each month.

Subject:
Ratios and Proportions
Material Type:
Lesson Plan
Date Added:
09/21/2015
Math, Grade 6, Ratios, Glide Ratio
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This lesson introduces the concept of a glide ratio and encourages students to use appropriate tools strategically (Mathematical Practice 5). Students use tape diagrams, double number lines, ratio tables, graphs, and equations to represent glide ratios.Key ConceptsA glide ratio for an object or an organism in flight is the ratio of forward distance to vertical distance (in the absence of power and wind). For a given object or organism that glides, this ratio has a constant value and is treated as a feature of the object or organism.Goals and Learning ObjectivesUnderstand the concept of a glide ratio.Make connections within and between different ways of representing ratios.

Subject:
Ratios and Proportions
Material Type:
Lesson Plan
Date Added:
09/21/2015
Math, Grade 6, Ratios, Peer Review
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Student groups continue to make their presentations, provide feedback for other students’ presentations, and get evaluated on their listening skills.Key ConceptsIn this culminating event, students continue presenting their project plan and solution to the class. The presentation allows students to explain their problem-solving plan, to communicate their reasoning, and to construct a viable argument about a mathematical problem. Students also listen to other project presentations and provide feedback to the presenters. Listeners have the opportunity to critique the mathematical reasoning of others.Goals and Learning ObjectivesPresent project to the class.Give feedback on other project presentations.Exhibit good listening skills.Reflect on the problem-solving process.

Subject:
Mathematics
Material Type:
Lesson Plan
Date Added:
09/21/2015