I made a slider for each child so we could make numbers. Children sat with a partner. The partner said a number and the other child had to make that number by sliding the numbers up and down. We used it as a warm up activity on and off for 2 weeks, until I was confident the children knew how to make and recognise 2 digit numbers.
You can make your own Place Value sliders using this pack!
You can make both the 2-digit and 3-digit slider in this pack.