1:1 Correspondence & Part-Part-Whole Maths Lesson Slides Support your students to build strong early number skills with these clear and engaging domino-themed maths lesson slides. This resource introduces 1:1 correspondence and part-part-whole thinking using simple visuals, explicit teaching language, and opportunities for students to practise counting dots accurately. Students will learn to touch and count each dot only once, combine two parts to make a whole, and explain how many dots there