yes , if you register as a parent, you can go in each year group which is divided into maths, english and science. In each subject, it has a list of areas that needed to be taught in that year. It has a page of explanation (i guess that is what you are after) followed by the worksheets. I copy a page for you here: (Is it ilegal???)
year one maths, numbers on the back are the topics inside
Title
Worksheets
Number and the Number System
Number names & order
3
Number sequences
9
Counting
20
Number writing and reading
2
Know what each digit in a number represents
5
Comparing and ordering numbers
9
Estimation and approximation
3
Calculations
Addition and related vocabulary
22
Subtraction and related vocabulary
17
Units of measure, Measure and compare
Vocabulary related to length, mass and capacity
5
Common 3-D and 2-D shapes
8
Vocabulary related to time
2
Solving Problems
Number operations
10
Generalise in regard to numbers and shapes
3
Solve word problems
8
Handling Data
Practice data handling and manipulation