One to one correspondence is important because it is a precursor for almost all mathematical concepts. Simply put, without well developed one-to-one correspondence skills, young children will struggle with basic math concepts. For this activity you will need a 6-count muffin tin and one die. Children can roll the die and count out the small manipulatives to place into the muffin tin. If your child does not have these items, simply count the dots on the die and add that amount to your muffin tins. 1. Click the in the corner of the picture to watch Mrs. T explaining this activity. 2. Click . 3. Count the dots on the die. 4. Use the tool to place the marbles into the muffin tin. 5. Use the or to show me your counting. 6. Complete all 6 pages. 7. Click the to turn it in.