Curated OER
Fun at Christmas Time-Puzzles
In this puzzle worksheet, students solve a set of 9 puzzles about Christmas. Page includes links to answers and additional resources.
Illustrative Mathematics
Illustrative Mathematics: k.oa Shake and Spill
The purpose of this task is for students to decompose a number as a sum of two other numbers in more than one way. Students will shake and spill 5 two colored counters and determine how many of each color is showing and record the sum...