This is a task from the Illustrative Mathematics website that is one part of a complete illustration of the standard to which it is aligned. Each task has at least one solution and some commentary that addresses important asects of the task and its potential use. Here are the first few lines of the commentary for this task: Isaiah is thinking of the number 9.52 in his head. Decide whether each of these has the same value as 9.52 and discuss your reasoning. 1. Nine and fift...

Introduce elementary students to the concept of functions by investigating growing patterns. Visual patterns formed with manipulatives are especially effective for elementary students and allow them to concretely build understanding as they first reproduce, then extend the pattern to the next couple of stages.

Students explore the biosphere's environments and ecosystems, learning along the way about the plants, animals, resources and natural cycles of our planet. Over the course of lessons 2-6, students use their growing understanding of various environments and the engineering design process to design and create their own model biodome ecosystems - exploring energy and nutrient flows, basic needs of plants and animals, and decomposers. Students learn about food chains and food webs. They are introduced to the roles of the water, carbon and nitrogen cycles. They test the effects of photosynthesis and transpiration. Students are introduced to animal classifications and interactions, including carnivore, herbivore, omnivore, predator and prey. They learn about biomimicry and how engineers often imitate nature in the design of new products. As everyday applications are interwoven into the lessons, students consider why a solid understanding of one's environment and the interdependence within ecosystems can inform the choices we make and the way we engineer our communities.

Students will convert vegetable bed measurements from feet to metric units using decimals.

Students will use a combination of writing and using their bodies to represent numbers at different place values from 1000 down to 1/1000. They will multiply and divide by powers of 10, adding and removing zeros as appropriate.

Students will use a stopwatch to time themselves performing in various events, record data, and then compare and order decimals to determine bronze, silver and gold medal winners.

In this lesson, students will measure spaces in the outdoor classroom in metric units recorded as decimals and compare the measurements.

Though this task primarily deals with comparing decimal numbers on a number line, it also requires students to draw upon what they know about the base ten system.

سيستخدم الطلاب مزيجًا من الكتابة واستخدام أجسامهم لتمثيل أعداد لها منزلات عدة من 1000 إلى 1/1000. سوف الأعداد بقوى العشرة ويقسمونها بها، فيضيفون الأصفار للأعداد أو يحذفونها منها بحسب الحاجة.