These adorable Ladybug theme number sense practice cards encourage students to explore the part-part-whole relationships of numbers. My inspiration for this product came after attending a Singapore Math training. These will work great when laminated and printed on cardstock. Students can then use dry erase markers on them during center time. You can use any manipulatives you or the studnets want!
Ladybug Part-Part-Whole Center Mats: Number Sense Practice
Math Coach's Corner: Using Number Bracelets to Develop Number Sense. This is like a mini rekenrek more than it is a bracelet, so don't make the mistake that this is just a "cutsie" little idea; this is real math!