Toy Theater is a collection of a wide range of interactive manipulatives (and games) for classroom use, however, it is perfect for remote learning opportunities for students who could use the extra help. These tools are most helpful for screen sharing during video sessions with your students through Meet or Zoom. Toy Theater is free and very easy to use.
You have to check this out! Sample below is a manipulative for area and perimeter.
Math, Reading, Music, Art, Puzzles, Games, and Teacher Tools.