Time & Calendar
Meet the second — the second hand sweeps 60 seconds per lap — and the calendar: big months, small months and the special February.
Fractions Intro
Meet fractions: equal parts, area and set models, fractions on the number line, and first equivalent fractions
Perimeter
Understand what perimeter means: the distance all the way around a shape. Walk a little ant around the border, then learn the perimeter formulas for rectangles and squares.
Area & Perimeter
Understand perimeter as the distance around a shape, add side lengths to find it, discover that rectangle area is length times width, and explore how the same perimeter can fence different areas
Multiply & Divide
Understand “times as many”, learn column multiplication of multi-digit numbers by one digit, and division with remainders — the remainder is always smaller than the divisor.
Rounding & Estimation
Understand rounding on the number line: see which ten or hundred a number is closer to, and build estimation intuition by finding the nearest benchmark