Geometry in third grade introduces kids to the idea that shapes have different categories (rectangles, rhombuses, etc..) attributes (four-sided, etc...) and areas of different values. This lesson, designed by our curriculum experts, provides the guided instruction and practice that third graders need to conceptualize shapes in a deeper way. For more practice, download and print the third grade geometry worksheets recommended as part of this lesson.
Planning for a substitute in the classroom has never been easier than with this daily sub plan! Your substitute can keep your students learning in your absence by using these lessons, worksheets, and activities.
These resources for calculating a rectangle's perimeter will help fourth and fifth graders improve their geometry and math skills. There is review of the formula for a rectangle’s perimeter, 2(l+w), and an introduction to the formula for area, w x l. Worksheets teach the formula for the perimeter and area of rectangles for students who are not familiar with them. Activities also help students understand relationships between rectangles that have the same distance around them. By measuring and drawing the 2-D shape, students will learn how to calculate a rectangle's perimeter. A hands-on activity with blocks also helps students better understand perimeter. Once students learn the formula for a rectangle’s perimeter they can try more difficult exercises, such as determining the lengths of a rectangle’s sides when only given the measurement of one side and the perimeter.