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3rd Grade Unit 3 Week 4



Third Grade




Hour of Code


 Unit 4

About the Mathematics in This Unit

Our class is starting a new mathematics unit about geometry and measurement called Perimeter, Area, and Polygons. During this unit, students measure length by using U.S. standard units (inches, feet, yards) and metric units (centimeters, meters). They investigate characteristics of triangles and quadrilaterals (4-sided polygons). They use right angles as a reference to identify other angles as being greater than or less than 90 degrees. Students solve problems about perimeter (the length of the border of a figure) and area (the measure of how much flat space a figure covers).
Area and Perimeter
  1. Brainpop Jr. - Perimeter
  2. Brainpop Jr. - Area
  3. Math Playground - Area and Perimeter
  1. Fruit Picker

Math, Words and Ideas

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