Illustrative Mathematics
Illustrative Mathematics: 1.oa Maria's Marbles
This lesson plans has students solve word problems about marbles using addition or subtraction within 20.
Illustrative Mathematics
Illustrative Mathematics: A rei.c.6: Accurately Weighing Pennies Ii
This illustrated math lesson shows how important levels of accuracy in measurement are. The answer can be different since a scale only accurately weighs to the nearest tenth of a gram instead of to the nearest hundredth of a gram. Aligns...
Common Sense Media
Common Sense Media: A Creator's Rights and Responsibilities
It's common for kids to use images they find online, for school projects or just for fun. But kids don't often understand which images are OK to use and which ones aren't. Help your students learn about the rights and responsibilities...
Illustrative Mathematics
Illustrative Mathematics: 4.g Defining Attributes of Rectangles & Parallelograms
At early stages of understanding of geometric shapes, 4th graders describe shapes, but do not yet characterize shapes by their properties. One example of a misconception students have at this stage is that a rectangle has two short sides...
Khan Academy
Khan Academy: Copyright, Licenses, and Digital Media
Check your understanding of copyright, DMCA, Creative Commons and open source licenses in this set of free practice questions designed for AP Computer Science Principles students.