ADDers-org
Updated: 
2016
1 Comment
Resource
Common Core
Game in the form of a flash program to help with telling the time. If you have problems running flash files (should open with any browser), a web...
Resource
Common Core
Children construct a home-made balance to approximately measure the weight of everyday items. Aligned with Common Core Standards: 3.MD.2
Resource
Common Core
Produce a gas to launch a rocket by reacting Alka-Selzer with water. Aligned with Core Standards: 5.MD.1 , 5.MD.2
Children's Museum Of Houston
Updated: 
2016
1 Comment
Resource
  • Math
  • K-2, 3-5
Common Core
Can you create a strategy to estimate how many sccops a jar will hold? Aligned to Common Core State Standard: 2.NBT.1
Resource
Common Core
<p>The Egyptians expressed all fractions as the sum of different unit fractions. Here is a chance to explore how they could have written...
nrich maths
Updated: 
2016
1 Comment
Resource
  • Math
  • K-2, 3-5, MS
Common Core
<p>Can you find a reliable strategy for choosing coordinates that will locate the robber in the minimum number of guesses?</p>Aligned to...
Resource
  • Math
  • K-2, 3-5, MS, HS
Common Core
What can you see? What do you notice? What questions can you ask? Aligned to Common Core State Standard: 4.G.1
Resource
  • Math
  • 3-5, MS
Common Core
Charlie has moved between countries and the average income of both has increased. How can this be so? Aligned to Common Core State Standard: 7.SP.4
Resource
  • Math
  • 3-5, MS
Common Core
I'm thinking of a number. When my number is divided by 5 the remainder is 4. When my number is divided by 3 the remainder is 2. Can you find my...
Resource
  • Math
  • 3-5, MS
Common Core
Which set of numbers that add to 10 have the largest product? Aligned to Common Core State Standard: 5.NBT.7