AQA GCSE Maths Foundation Paper 3 Notes
Rounding and Basic Arithmetic
- Rounding to Two Decimal Places: 6.219 rounds to 6.22.
- Percentages: If 50% of a number is 40, the full number is 80.
- Decimals Comparison: 0.7 is greater than 0.07.
Geometry and Shapes
- Congruent Shapes: Shapes A and C are congruent (rotated).
Calculations Using Cards
- Multiple of Ten: 38 x 5 = 190 (ends in zero).
- Single Digit Calculation: 3 x 5 - 8 = 7.
- Correct Calculation: (6 + 5) / (8 + 3) = 1.
Budgeting and Savings
- Saving for Purchase: £125 + 19 weeks x £7.50 = £267.50.
Algebra
- Types of Algebraic Statements:
- Equation: Has an equal sign.
- Expression: Does not have an equal sign.
Combinatorics
- Team Combinations: 6 possible teams with one female and one male.
Word Problems
- Race Completion:
- Start: 500 participants (281 men, the rest women).
- Finish: 224 men, 190 women finished.
Unit Conversion and Measurement
- Ordering Distances: Convert to meters for comparison.
- Angle Calculation: Angle X in a line sum is 28°.
Statistics and Probability
- Pie Chart Completion: Complete pie chart using given angles.
- Probability: Probability of <4 days absence is 19/25.
Money Management
- Counting Coins: 14 coins of 20p (worth £2.80) & same number of 50p coins (worth £7.00).
- Ticket Pricing: Cheapest option for 3 adults + 4 children saves £46.
Graphs and Equations
- Graph Drawing: Formula Y = 3.6x from 0 to 20.
- Speed Conversion:
- 50 km/h ≈ 14 m/s
- 30 m/s = 67.08 mph
Statistical Calculations
- Mean Calculation: Mean days absent = 69 days/25 students = 2.76 days.
Formula Representation
- Formula for Total Value: T = 15 + 10x.
Geometry and Angles
- Cuboid Drawing: 2x3 rectangle for front elevation.
- Scale Factor and Similarity: Scale factor = 1.25.
Pythagorean Theorem
- Use Pythagorean Theorem: Calculate hypotenuse using a² + b² = c².
Problem Solving and Logic
- Chris' Cycling: Speed home = 8 mph.
- Similar Triangles: Identify scale factor and calculate unknown side.
Linear Equations
- Parallel Lines: Identify parallel lines by matching gradients.
Loci and Bisectors
- Locus of Points: Use compass to find equidistant path between points.
Ratio and Proportion
- Proportion Problems: Use ratios to solve.
Perimeter and Area
- Perimeter Calculation: Verify percent decrease claim.
Expanding and Simplifying Expressions
- Expand Expressions: Distribute terms correctly.
Conclusion
- Final Calculation: Calculate final values for combined expressions.
These notes compile the key information and processes from the AQA GCSE Foundation Maths Paper 3 lecture, providing a concise study aid for exam preparation.