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SAT

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29 video lessons

4:33 Topic 1 Information and Ideas The central idea is the relationship that holds the passage together. Read: “The repair café first accep… 4:17 Topic 2 Craft and Structure A word in context must fit the relationship, not just a dictionary entry. In “The evidence is thin, so t… 3:49 Topic 3 Expression of Ideas Rhetorical synthesis selects facts for a purpose. Notes: A stores 12 litres; B stores 20; both use recyc… 4:08 Topic 4 Standard English Conventions A sentence boundary depends on clause structure. “Although the door was locked” is dependent; attach it … 4:02 Topic 5 Algebra An identity holds for every permitted input. Start with a x plus b equals c x plus d. Collect terms: ope… 3:38 Topic 6 Advanced Math Equivalent expressions must agree on the stated domain. E of x equals x squared minus 25, all over x min… 3:46 Topic 7 Problem-Solving and Data Analysis A rate compares quantities with their units. v equals d divided by t, which is 90 kilometres divided by … 4:38 Topic 8 Geometry and Trigonometry A scale factor k changes every corresponding length. A sub 2 equals k squared times A sub 1, and V sub 2… 4:02 Topic 9 Linear parameters, solution counts and inequalities An identity holds for every permitted input. Start with a x plus b equals c x plus d. Collect terms: ope… 3:39 Topic 10 Equivalent expressions and domain restrictions Equivalent expressions must agree on the stated domain. E of x equals the quantity x squared minus 25, a… 3:37 Topic 11 Nonlinear equations and mixed systems A candidate root must satisfy the original equation. In the square root of x plus 6 equals x, the right … 3:50 Topic 12 Nonlinear functions, transformations and growth Vertex form a times x minus h squared plus k reveals the turning point h comma k. For H of t equals nega… 3:46 Topic 13 Ratios, unit conversion and successive percentages A rate compares quantities with their units. v equals d divided by t, which is ninety kilometres divided… 3:36 Topic 14 Distributions, transformations and spread A frequency counts repeated observations. Values one, three, seven with frequencies two, one, one repres… 3:44 Topic 15 Scatterplots, model residuals and predictions A residual is observed minus predicted output. A journey model T equals 5 plus 2 d uses minutes for T an… 3:36 Topic 16 Probability from a table and a restricted group Conditional probability restricts the denominator. Of 40 club members, 12 cycle; 8 of those cyclists wea… 3:31 Topic 17 Sampling, margin of error and causal claims A margin of error is added and subtracted in percentage points. Estimate 63% with margin 4 points gives … 4:38 Topic 18 Scale factors, angle relationships and triangles A scale factor k changes every corresponding length. A sub 2 equals k squared times A sub 1, and V sub 2… 3:44 Topic 19 Circle equations, arcs and unit-circle trigonometry Complete both squares in a circle equation. x squared plus y squared plus 6 x minus 8 y equals 0 becomes… 4:33 Topic 20 Central ideas, details and the scope of a claim The central idea is the relationship that holds the passage together. Read: “The repair café first accep… 4:34 Topic 21 Choose evidence for a precise textual or numerical claim Evidence must support the exact claim, including its comparison base. If 9 of 15 tasks succeed, p equals… 4:09 Topic 22 Complete a passage with a warranted inference A warranted inference connects supplied facts without importing a cause. “Short labels helped beginners;… 4:17 Topic 23 Words in context: meaning, polarity and collocation A word in context must fit the relationship, not just a dictionary entry. In “The evidence is thin, so t… 4:08 Topic 24 Text structure, sentence function and rhetorical purpose Sentence function states what a sentence does in its context. “The machine was fast. It damaged thin she… 4:29 Topic 25 Compare two texts without merging their claims Cross-text comparison connects claims about the same issue. “Signs reduced wrong turns” and “lighting al… 3:50 Topic 26 Use research notes for the requested rhetorical goal Rhetorical synthesis selects facts for a purpose. Notes: A stores 12 litres; B stores 20; both use recyc… 4:02 Topic 27 Transitions: choose the logical relationship first A transition names a logical relationship. “The line is shorter. However, it moves more slowly” contrast… 4:08 Topic 28 Sentence boundaries, colons and nonessential information A sentence boundary depends on clause structure. “Although the door was locked” is dependent; attach it … 4:11 Topic 29 Agreement, verb forms, modifiers and logical parallelism Agreement follows the subject head, not the nearest noun. “The set of keys is missing” has singular set.…

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IGCSE, A-Level & AP