by Aussie Waves © 2020
Price: $2 USD
Subjects: math
Grades: 13,1,2
This mystery hidden picture deck helps students revise symbols for numbers 1-20. Students click to match a numeral with10 frames, blocks, tally marks, words, finger counts, beads. Each correct answer reveals a little more of the hidden image. There are 23 slides. The last task is a writing explanation of when and how the student predicted the picture. An easy, meaningful justification task.