Great Minds aka Eureka is posting new video content to support the curriculum. You may want to take a moment to check this out to see if it will be helpful for your students. https://gm.greatminds.org/en-us/knowledgeonthego
The Math Playground : daily math playdates with the math ambassadors in the www.mathplayground.com You can set up private games with your students like the jet ski races (addition) or other group games for multiplication or fractions.