Digital Chalkboard is shutting down and will no longer be available after January 26, 2022.
California is investing in a new curated repository of free, high-quality, open source instructional resources for local educational agencies and educators to use. Please visit California Educators Together and sign up for your free account today.
Please contact us at support@mydigitalchalkboard.org, if we can be of further assistance.

Table of Contents

Unit 2: Overarching Habits of Mind (MP1 and MP6)

2.3.1 Focusing on Mathematical Statements

Time to Try

Read the statements below about rectangles (written by grade-level teachers of mathematics).

Teacher
Grade Level
Task: Write a statement about rectangles.
Special Education Elementary  If a figure has four right angles, then it is a rectangle.
7th If a shape is a rectangle, then it is a parallelogram with at least two right angles.
5th If a figure is a rectangle, then it is a parallelogram with at least one right angle.
4th If a figure is a rectangle, then it is a four-sided polygon with four right angles.
2nd If a figure is a rectangle, then it is a four-sided polygon with four right angles.
6th If a parallelogram is a rectangle, it has four right angles.
Time to Reflect

What do you notice about the teacher’s statements?

 

Loading...

Login required to enable "Save Answers" feature.