Number & Operations Lessons for Grade 1
Count to 120, break numbers into tens and ones, compare two-digit numbers, and add within 20 with pictures. Each idea gets a hands-on board where the number changes as you play. Every lesson opens with a moving diagram you can touch and explore, followed by simple words that explain the idea.
Choose a lesson
Counting to 120
Count aloud on an interactive 120 chart by 1s, 2s, 5s, or 10s, then find randomized target numbers with spoken right-or-wrong feedback.
Open lesson →Tens and Ones
Build randomized numbers from 11 to 99 with tens rods and ones cubes, correct mistakes, check the mat, and hear immediate answer feedback.
Open lesson →Comparing Two-Digit Numbers
Choose the larger place-value mat, or use plus and minus 1s and 10s to make the left number exactly the requested amount bigger.
Open lesson →Addition Within 20
Choose how many counters make 10, drag or tap them into a ten-frame, count the leftovers, and complete randomized sums through 20.
Open lesson →