This week is another week about counting. Children are chanting numbers to 20 and beginning to chant numbers to 100. They count ten items into a set, and are beginning to count up to 20 items into a set. Children reinforce matching spoken numbers and written numerals to appropriate quantities. They count accurately using one-to-one correspondence and understand conservation of number. They learn to write numbers to 10 and begin to compare and order numbers to 10.