How Many Are Hidden? Number Rack
What do you notice? How many beads do you see?
Now some beads are hiding behind the screen. How many are hidden? Use math words, numbers, or pictures to explain how you know.
What equations match the picture? How do you know?
Use the MLC Number Rack app or draw a picture to show a different number of beads hiding. How many are hidden?
Google doc for printing and copying
Activity for the Seesaw platform
Reference for Educators
Sample problems and solutions