Curated OER
More or Less
Freddy the Frog helps little learners determine which number comes before and which one comes after. He hops around a number chart and children write down the number one less and one more than where he has landed. This is a very cute way...
Illustrative Mathematics
Illustrative Mathematics: Five by Two
This card game reinforces number identification and sequencing and is conducive to small groups/centers. The students will need a deck of playing cards including some of the face cards. Instructions and variations for play are included.
NumberNut
Number Nut: Numbers and Counting: Counting From One to One Thousand
A game where the player must first click on the number that is one less than a number between one and one thousand, then on the number that is one more.