The solutions unit consists of the following: General points for discussion relating to the teaching of the mathematical content in the activities. Step-by-step mathematical solutions to the activities. Annotations to the solutions to assist teachers in their understanding the maths as well as teaching issues relating to the mathematical content represented in the activities. Suggestions of links to alternative activities for the teaching of the mathematical content represented in the activities.

There are a wide range of interactions between 'science' and 'the public'. Examples range from visiting a museum, or indulging in a science-related hobby, to reading a newspaper article about a breakthrough in the techniques of therapeutic cloning. Many of these interactions could be said to be 'passive'. This unit explores the practicalities of the public becoming more 'active' in the direction of science practice by 'two-way' interactions, with dialogue taking place between science and some part of 'the public',

This lesson is about teaching about how to write paragraphs in cursive, and also topic in cursive. for example (favorite movie, class, book, or health goal.)

In this activity, students explore the effect of chemical erosion on statues and monuments. They use chalk to see what happens when limestone is placed in liquids with different pH values. They also learn several things that engineers are doing to reduce the effects of acid rain.

Students conduct a simple experiment to model and explore the harmful effects of acid rain (vinegar) on living (green leaf and eggshell) and non-living (paper clip) objects.

Students are introduced to the differences between acids and bases and how to use indicators, such as pH paper and red cabbage juice, to distinguish between them.

Students play and record the “Mary Had a Little Lamb” song using musical instruments and analyze the intensity of the sound using free audio editing and recording software. Then they use hollow Styrofoam half-spheres as acoustic mirrors (devices that reflect and focus sound), determine the radius of curvature of the mirror and calculate its focal length. Students place a microphone at the acoustic mirror focal point, re-record their songs, and compare the sound intensity on plot spectrums generated from their recordings both with and without the acoustic mirrors. A worksheet and KWL chart are provided.

This online tool enables students to learn about and write acrostic poems. Elements of the writing process are also included.

Students are given an online dictionary and exampe of an acrostic poem. Students then use the dictionary and example to create thier own acrostic poem using the letters in their name. 

Students construct rockets from balloons propelled along a guide string. They use this model to learn about Newton's three laws of motion, examining the effect of different forces on the motion of the rocket.

This recurring lesson encourages students to comprehend their reading through inquiry and collaboration. They choose important quotations from the text and work in groups to formulate "quiz" questions that their peers will answer.

An interactive applet and associated web page that demonstrate acute angles (those less than 90 deg). The applet presents an angle (initially acute) that the user can adjust by dragging the end points of the line segments forming the angle. As it changes it shows the angle measure and a message that indicate which type of angle it is. There a software 'detents' that make it easy capture exact angles such as 90 degrees and 180 degrees The message and angle measures can be turned off to facilitate classroom discussion. The text on the page has links to other pages defining each angle type in depth. Applet can be enlarged to full screen size for use with a classroom projector. This resource is a component of the Math Open Reference Interactive Geometry textbook project at http://www.mathopenref.com.

An interactive applet and associated web page that demonstrate the three types of triangle: acute, obtuse and right. The applet shows a triangle that is initially acute (all angles less then 90 degrees) which the user can reshape by dragging any vertex. There is a message changes in real time while the triangle is being dragged that tells if the triangle is an acute, right or obtuse triangle and gives the reason why. By experimenting with the triangle student can develop an intuitive sense of the difference between these three classes of triangle. Applet can be enlarged to full screen size for use with a classroom projector. This resource is a component of the Math Open Reference Interactive Geometry textbook project at http://www.mathopenref.com.

This activity focuses on retelling and performing a story that has been formatted from a traditional version to the setting of the Old West. When retelling a story to someone else, it is important to have the sequence and all parts to the story in correct order. The beginning of a story generally tells who the characters in the story are and what the problems may be. The middle generally explains what attempts were made to solve the problems, and the end generally has the solution, results, and how the story ends. For this activity, students should be familiar with the original tale so they will see the parallel between the original and the adapted version. As you are preparing to retell/role-play the story, you will need to discuss the main characters the students will be portraying and decide what simple props, if any, may be helpful in telling the story.

In this lesson, students will develop their fluency with addition and subtraction through a "real-world" application of collecting data about insects in the garden.

One way to make stories even better is to show emotions, and not just tell them. In this lesson, students will use actions, gestures, and facial expressions to act out emotions.

Adult Learners will review the previous lesson, measuring with a thermometer, to continue their application in horizontal number lines. Learners will use the number line to increase their understanding of integer values as well as apply their understanding to solving real world problems.