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PPT
Curated OER

What's Missing?

For Teachers 2nd - 4th
Can you tell which punctuation mark is missing throughout this PowerPoint game? Each slide displays 10 punctuation marks and an empty spot for the missing one. Challenge your detectives to be the first one to figure out which mark is...
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Worksheet
Curated OER

Introduction to Accumulation

For Students 11th - Higher Ed
In this math worksheet, students work in groups to estimate the area of the ellipses using the grids. Then they estimate the arclengths of the ellipses.