Curated OER
Subtraction Tables
With several numbers already filled in, this math worksheet is sure to help your first graders with their subtraction. Three grids prompt learners to finish certain subtraction problems and fill in the answers. A great way to reinforce...
Curated OER
Who Has More Money?
Coloring and money combine in this fun instructional activity! First and second graders count the amounts of money represented in each, and then color the person or animal who has the most money. They then draw the correct coins to add...
Curated OER
Pocket Change
Students explore algebraic relationships using the coins in their "pocket." Interactive games that demonstrate the use of estimation in algebraic problem solving help them build a framework for understanding word problems in a way that...
Curated OER
Clock Arithmetic and Cryptography
Students investigate modular clock arithmetic and cryptography. They perform basic operations in modular (clock) arithmetic and encode and decode messages using simple shift and affine ciphers.
Curated OER
Misleading Graphs
Students explore number relationships by participating in a data collection activity. In this statistics instructional activity, students participate in a role-play activitiy in which they own a scrap material storefront that must...