Join Mrs. Ignagni for a Mystery Math Mistake with her friend Springling. Can you figure out where she went wrong on her open number line?
Lesson 113
Math
2nd Grade
Add & Subtract within 100
3rd Grade
Use decomposition to find the area of figures. How will you decompose the figures into rectangles? Engage in a Number Talk and compare your strategies to others.
Lesson 114
Kindergarten
Write Numbers to Show How Many