Common core 1st grade math. Place value, base 10 and symbols for comparing numbers
What are numbers? How does the base ten system make it easier to count and represent numbers larger than nine? What are the symbols for less than, greater than, and equal to? How can these symbols be used to compare two-digit numbers? The answers to these questions are covered in depth with detailed graphics, diagrams, and exciting video. On-screen, multiple-choice reviews at the end of each segment reinforce important concepts and make learning...