: Working with time, distance, and weight.
: Concepts of symmetry and properties of geometric figures.
: Multi-step word problems requiring a 7-step algorithm : reading, identifying data, sketching, planning, calculating, and checking.
: Detailed video explanations for specific lessons and problem numbers can be found on YouTube channels like Antonina Arkadievna Tofeleva , which covers both Part 1 and Part 2 of the curriculum.