In today’s lesson, students learned about odd and even numbers, focusing on counting in steps of two and identifying numbers up to 30. They used number cards from 1 to 20 and a number grid from 1 to 100 to practice counting forward and backward. The key vocabulary included counting on, twos, odd, and even, with an emphasis on recognizing that even numbers end in 0, 2, 4, 6, or 8. The lesson involved hands-on activities, including circling the even numbers on their grids.