NTTI
Putting Together Ten
Groups explore sets of 10 items in two varieties (i.e. 3 white buttons and 7 black ones, or 5 bears and 5 bunnies). They brainstorm about their objects, write math sentences to represent what they have, and report their discoveries to...
Curated OER
Number Sense
First graders practice rounding 4 digit numbers using place value concepts. In this estimating sums and differences lesson plan, 1st graders explore clustering, rounding, and front end estimation as methods for rounding decimals.
Curated OER
Chart Trivia
Students practice addition and subtraction problems and answer questions using greater than and less than. They chart information to create a graph on the computer.
Curated OER
Place Value Popsicles
Students play a place value game using popsicle sticks and dice. They investigate units and tens.