CK-12 Foundation
Ck 12: Adding by Counting On
[Free Registration/Login may be required to access all resource tools.] The video uses counting on to solve an addition problem with sums to ten. The video is followed by practice problems.
CK-12 Foundation
Ck 12: Addition Sums to Ten
[Free Registration/Login may be required to access all resource tools.] The video uses a model to aide in showing how to add numbers up to ten. In addition to the video, there is a PLIX interactive challenge where students answer...