Introduces whole numbers ranging from one to two million in a sequential progression with 6 materials. Material 1 contains names of the numbers from 1 to 10 in Spanish, the corresponding numerals and the matching image of the bead stair. Material 2 contains numbers and their Spanish names 1 to 20. Material 3 focuses on numbers 1 to 100. Material 4 is a bingo activity with numbers 1 to 100. Material 5 focuses on numbers 100 to 1,000 Material 6 focuses on numbers 1,000 to two million. All have a control of error.