During Unit 1, your children will use numbers to 10, including written numerals, to represent quantities and to solve quantitative problems, such as counting objects in a set; counting out a given number of objects; comparing sets or numerals; and modeling simple joining and separating situations with sets of objects, or eventually with equations such as 5 + 2 = 7 and 7 – 2 = 5.

Key Vocabulary: Add, Addition, As many as, Compare, Equal, Fewer than, Five frame, Greater than, Join, Least, Less, Less than, More, More than, Most, Number path, One less, One more, Part-Part-Whole, Plus, Put together, Same, Separate, Subtract, Subtraction, Take apart, Ten frame