The order of teaching math topics in first grade may vary depending on the curriculum and teaching method used, but in general, a good starting point for teaching math in first grade would be:

1. Counting and number recognition up to 20
2. Basic operations (addition, subtraction) with numbers up to 10
3. Place value and number sense, such as understanding the value of digits in two-digit numbers
4. Measurement and time concepts such as days of the week, months of the year, and basic units of time like minutes and hours
5. Geometry and shapes, such as identifying and describing basic shapes like circles, squares, triangles, and rectangles
6. Fractions (introduction), such as recognizing and identifying fractions of a whole
7. Problem-solving and reasoning, such as solving simple word problems
8. Data and graphing, such as reading and interpreting simple picture graphs
9. Basic operations (addition, subtraction, multiplication, division) with numbers up to 10
10. Money and basic economic concepts, such as identifying and counting pennies, nickels, dimes, and quarters