How to learn 2º ano: Mathematics

Base Nacional Comum Curricular (BNCC), Ensino Fundamental: Matemática (Mathematics), 2º ano

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1. Mathematics

1. Comparing Large Numbers: Order and compare numbers beyond 1000
2. Counting objects to 20: Count a set of objects to answer 'how many?' for sets up to 20 (arranged in lines, arrays, circles, or scattered)
3. Comparing groups: more or fewer: Compare two groups of objects to determine which has more, fewer, or whether they are equal, using matching and counting strategies
4. Mental addition and subtraction (age 6+): Add and subtract a two-digit number and ones mentally and using concrete/pictorial representations
5. Mental and written addition and subtraction: Solve addition and subtraction problems using mental and written methods, including problems involving numbers, quantities, and measures
6. Multiplication as repeated addition (age 6+): Solve problems involving multiplication and division using arrays, repeated addition, mental methods, and known facts
7. Patterns & Sequences: Order and arrange combinations of mathematical objects in patterns and sequences
8. Describing Movements: Describe movements between positions as translations of a given unit to the left/right and up/down
9. 3-D shapes: Recognise and name common 3-D shapes (cubes, cuboids, pyramids, spheres, cylinders, cones)
10. 2-D shapes: Recognise and name common 2-D shapes (circles, triangles, rectangles including squares)
11. Estimating Lengths: Estimate lengths using units of inches, feet, centimetres, and metres
12. Calculating with measurements: Measure, compare, add, and subtract lengths (m/cm/mm), mass (kg/g), and volume/capacity (l/ml) using standard units
13. Days, Weeks, Months & Years: Recognise and use language relating to dates, including days of the week, weeks, months, and years
14. Telling time to the minute (age 8+): Tell and write time to the nearest minute using analogue and digital clocks
15. Likelihood Language: Use probability language to describe and compare the likelihood of everyday events using words such as certain, likely, even chance, unlikely, impossible
16. Bar graphs: Interpret and present discrete and continuous data using appropriate graphical methods, including bar charts and time graphs
17. Sorting Data into Categories: Organise and represent data with up to three categories by counting objects in each category and sorting categories by quantity