- Aaron Daffern

# 3rd Grade Math Review: Day 9

Updated: Jul 21

In __yesterday's post__ we reviewed input-output tables and counting bills and coins. Today, in the third and final week of our review, we turn to the third reporting category in the assessed curriculum - Geometry and Measurement.

**Describing 3D Shapes**

Students have already learned a lot of formal geometric language before studying it again in the 3rd grade. Here's a short recap of the many terms that students should be familiar with.

With that in mind, try this geometry problem from a released STAAR test.

**Quadrilaterals**

Students might think that they already know everything about four-sided shapes but in 3rd grade they start classifying them by attributes. When that begins, they soon learn some strange things - like the fact that all squares are rectangles but not all rectangles are squares!

The problem below is not as easy as it seems. Think carefully before answering.

**Correct Answers
**Here's a video you can use to check your answers.