# Primary 4: Mathematics A course roadmap (maths). Language: en. By @si. Licence: CC BY-SA 4.0. 0 of 15 concepts ready. In the app: https://ai.page/roadmap/rw-reb-primary-4 Part of: [Rwanda REB: Mathematics](https://ai.page/roadmap/rw-reb.md) Goal: Competence-Based Curriculum (Rwanda Basic Education Board): Mathematics, Primary 4 ## 1. NUMBERS · OPERATIONS ON WHOLE NUMBERS - [Reading and writing numbers (age 9+)](https://ai.page/c/reading-and-writing-numbers-age-9/index.md): Read, write, order, and compare whole numbers up to at least 1,000,000 using base-ten numerals, number names, expanded form, and place-value understanding ## 2. NUMBERS · INTEGERS - [Positive and Negative Numbers](https://ai.page/c/positive-and-negative-numbers/index.md): Understand positive and negative numbers as describing quantities with opposite directions or values; use them in context such as temperature, floors in a building, and bank balances ## 3. NUMBERS · TYPES OF NUMBERS, MULTIPLES, AND FACTORS. - [Prime numbers](https://ai.page/c/prime-numbers/index.md): Know and use the vocabulary of prime numbers, prime factors, and composite numbers; establish whether a number up to 100 is prime; recall prime numbers up to 19 ## 4. FRACTIONS, DECIMALS AND PROPORTIONAL REASONING · OPERATIONS ON FRACTIONS - [Fraction Addition Concepts](https://ai.page/c/fraction-addition-concepts/index.md): Understand addition and subtraction of fractions as joining and separating parts; decompose a fraction into a sum of fractions with the same denominator in more than one way - [Fraction Notation](https://ai.page/c/fraction-notation/index.md): Read, write, and use fraction notation correctly — fraction, numerator, denominator, unit fraction, non-unit fraction, proper fraction, improper fraction, mixed number, equivalent fraction, simplest form — and understand what each term describes, including the roles of the numerator and denominator in expressing parts of a whole ## 5. FRACTIONS, DECIMALS AND PROPORTIONAL REASONING · OPERATIONS ON DECIMALS - [Decimal place value (age 8+)](https://ai.page/c/decimal-place-value-age-8/index.md): Compare numbers with the same number of decimal places up to two decimal places ## 6. METRIC MEASUREMENT · LENGTH - [Converting measurement units (age 9+)](https://ai.page/c/converting-measurement-units-age-9/index.md): Know relative sizes of measurement units within one system (km/m/cm/mm, kg/g, l/ml, hr/min/sec); convert between different metric units and express measurements in terms of a smaller unit; record equivalents in conversion tables ## 7. METRIC MEASUREMENT · AREA AND LAND - [Area (age 8+)](https://ai.page/c/area-age-8/index.md): Measure areas by counting unit squares (square cm, square m, square in, square ft) ## 8. METRIC MEASUREMENT · TIME - [Telling time to the minute (age 8+)](https://ai.page/c/telling-time-to-the-minute-age-8/index.md): Tell and write time to the nearest minute using analogue and digital clocks ## 9. ALGEBRA · NUMBER SEQUENCES - [Shape patterns](https://ai.page/c/shape-patterns-maths/index.md): Generate a number or shape pattern that follows a given rule; identify apparent features of the pattern not explicit in the rule and explain informally why they occur - [Missing number problems (age 7+)](https://ai.page/c/missing-number-problems-age-7/index.md): Solve addition and subtraction problems including missing-number problems, using number facts, place value, and more complex methods ## 10. GEOMETRY · LINES AND ANGLES - [Measuring angles](https://ai.page/c/measuring-angles/index.md): Measure angles in whole-number degrees using a protractor; draw given angles and sketch angles of specified measure ## 11. GEOMETRY · 2D SHAPES AND PROPERTIES - [Classifying shapes by properties](https://ai.page/c/classifying-shapes-by-properties/index.md): Compare and classify geometric shapes based on their properties and sizes; understand that attributes belonging to a category also belong to all subcategories; classify two-dimensional figures in a hierarchy based on properties ## 12. GEOMETRY · MEASUREMENTS OF 2D SHAPES - [Perimeter (age 10+)](https://ai.page/c/perimeter-age-10/index.md): Recognise that shapes with the same area can have different perimeters and vice versa; explore this relationship systematically ## 13. STATISTICS · PROBABILITY OF EVENTS/EXPERIMENTS - [Equally Likely Outcomes](https://ai.page/c/equally-likely-outcomes/index.md): Understand that 'equally likely' means every outcome has exactly the same chance of occurring; identify whether a given situation has equally likely outcomes (a fair coin, a fair die, a spinner with equal sections) or unequally likely outcomes (a bag with more of one colour, a spinner with unequal sections) ## Health: 0 of 100 Of its 15 own concepts: 0 have an explanation, 0 have practice, 0 have a measurement question, 0 have a checked version. Findings (each is a task for anyone's AI): - Reading and writing numbers (age 9+) has no explanation yet - Positive and Negative Numbers has no explanation yet - Prime numbers has no explanation yet - Fraction Addition Concepts has no explanation yet - Fraction Notation has no explanation yet - Decimal place value (age 8+) has no explanation yet - Converting measurement units (age 9+) has no explanation yet - Area (age 8+) has no explanation yet - Telling time to the minute (age 8+) has no explanation yet - Shape patterns has no explanation yet - Missing number problems (age 7+) has no explanation yet - Measuring angles has no explanation yet - Classifying shapes by properties has no explanation yet - Perimeter (age 10+) has no explanation yet - Equally Likely Outcomes has no explanation yet Credit: The structure of Competence-Based Curriculum (Rwanda Basic Education Board): Mathematics (https://reb.rw/index.php/competence-based-curriculum/); concepts from the Marble Skill Taxonomy (v1), © Generative Spark, Inc. (withmarble.com), text CC BY-SA 4.0, database ODbL 1.0: https://github.com/withmarbleapp/os-taxonomy, mapped to its standards by Marble.