I'm not good at Levels stuff but I can tell you what sorts of things DC3 just finishing y3 has done, he's probably "more able" in maths & average-ish in everything else:
Lots of time tables, and related concepts, this continues thru to y6 ime
Some 3D basic geometric shapes
Not yet vertical addition, multiplication or long division (y5-y6)
Early fractions work, like 1/5 to 1/2, shading squares in to make that tangible.
Lots of spellings, and regular spelling patterns to learn. Eg, in January he had "re" and "pre" before simple words, Last & this week it's prefixes (eg, clockwise ,nonsense, abnormal). Before he's had compound words or "tion" words.
Homework: Writing short sentences using the spelling pattern words; persuasive language, food chains, Venn diagrams, animals & their habitat, what do you know about China
In class: Writing stories, they were encouraged to make up their own myths.
They had treasure as a theme & made a treasure thing (like a box, DS's box was extremely basic!)
Food as a theme, lots on healthy eating, pictures of types of food, focus on key facts on BRIC countries.
Lots on Olympics recently, what kind of athletes would they like to be, Homework example: Describe an Olympic event (teacher now targets DS to write about 50 words on this sort of thing).
Bodies, names of all body parts, digestion bits.
As part of being encouraged to use their imaginations they are all going off to Bewilderwood soon. 