Looks like LEGOS are the manipulative that everyone needs this year! Check out these LEGO ideas. LEGO Letters Have students use re.
(Great activities to do with kids to learn or reinforce shapes). Shape Math Activities for Kids - So many fun ways for preschool, kindergarten, grade, and grade kids to explore geometric shapes in this stem activities for kids.
Ramps in the Science Center. Love this idea of a science / math investigation question out at all times.