Curated OER
Counting with Place Value, with the Abacus
Students study an abacus while counting marathon runners. In this place value lesson, students watch a video segment on how counters keep track of marathon runners to reinforce the idea of place value.
Bright Hub Education
Math Lesson for Visually Impaired Early Learners: A 3 Way Counting Activity
A unique instructional activity that's designed for visually impaired early learners, but can be adapted for anyone, is here for you. Pupils use brightly colored foam letters, beads, checkers, and an abacus, in order to gain practice in...
Curated OER
Domain: Operations and Algebraic Thinking
Practice basic operations for young mathematicians in fun ways! Using two decks of cards (Ace through 10 plus the joker), learners play "memory" by matching numbers that can be added to make 10 and writing number sentences. In another...
Curated OER
The History of Mathematics
Research the interrelationship between math and science. Search the Internet to discover the history of several branches of mathematics and make text-to-world connections between the concepts covered in each branch with related...
Curated OER
Money for starters
Students compare the values of coins and paper money. They read prices, read and write any 2-digit number. They model and explain addition calculations with a sum of up to 20.
Curated OER
Subtraction
Second graders regroup two-digit numbers and solve advanced subtraction problems with regrouping; students use straw and cup manipulatives to demonstrate how to borrow from the tens place in order to solve the problem.
Curated OER
"ty" number
Second graders encounter the need to assess the code in English for tens is that the word ends in "-ty." They explore the meaning of two or three digit whole numbers to realize that the meaning of words like sixty can be decoded by...