Primary Junction
Adding Tens
Build on your learners' confidence in quick addition as they discover strategies to add tens to two-digit numbers. After reviewing counting by 10's, they discuss tactics to add multiples of 10 to other numbers. They visualize how to...
Curated OER
Count by Tens: Beginning ESL Lesson
Different pictures and illustrations show ESL students the relationship between numbers and their English names (10 and ten, for example). Each slide provides one picture and one number, counting by tens, all the way up to one hundred....
Curated OER
Gattegno Grid
Here is a pdf file containing a Gattegno grid and ideas relating to its use. Try it out for place value, addition, and counting practice.
Curated OER
100 Things
Use this simple, but eye-catching graphic as a sheet on which children can count, sort, and glue or draw 100 objects divided into sets of 10. A handy reproducible for 100th day.