Master the official IB Design Technology rubrics by understanding the exact differences between waste mitigation strategies, avoiding colloquial terms, and applying the strict ID+Dev formula to secure full marks on short-answer and essay questions alike.
อ่าน 4 นาทีอัปเดตเมื่อ: 21 มิ.ย. 2569
ภาพรวมข้อสอบ
จำนวนฉบับ
2
คะแนนเต็ม
80
เวลาสอบ
2ชม. 15นาที
ประเภทคำถาม
3
ฉบับ
เวลา
คะแนน
จำนวนข้อ
น้ำหนักคะแนน
ประเภทคำถาม
Paper 1 (SL)
45นาที
30
30
—
Multiple Choice
Paper 2 (HL/SL Core)
1ชม. 30นาที
50
11
—
Data-Based / Case-Study Short Answer, Structured Essay
เกณฑ์เกรด
1234567
ข้อกำหนดเครื่องคิดเลข
A graphic display calculator (GDC) from the IB-approved list is required for most Mathematics and Sciences papers and must be set to examination mode. Note that some papers do not permit a calculator (for example Mathematics Paper 1 and the multiple-choice Sciences Paper 1).
AO1: AO1: Demonstrate knowledge and understanding (25%)
วัตถุประสงค์: Plot a function to read its roots (zeros), points of intersection, and maxima/minima.
ใช้เมื่อใด: Checking solutions, sketching, or solving where an analytic method is hard.
ขั้นตอน
Graph the function(s) and use the built-in zero, intersect and maximum/minimum tools.
ข้อควรระวังในการสอบ: Use a GDC from the IB-approved list in examination mode. Some papers do not permit a calculator. Always show your reasoning.
Numerical equation solver
Graphical calculator / GDC (exam mode)
วัตถุประสงค์: Solve an equation or find a variable numerically when an algebraic route is long or implicit.
ใช้เมื่อใด: Iterative or implicit equations, or to confirm an algebraic solution.
ขั้นตอน
Use the equation/zero solver, entering the equation and a sensible starting estimate.
ข้อควรระวังในการสอบ: Use a GDC from the IB-approved list in examination mode. Some papers do not permit a calculator. Always show your reasoning.
Numerical integration & differentiation
Graphical calculator / GDC (exam mode)
วัตถุประสงค์: Evaluate a definite integral \(\int_a^b f(x)\,dx\) or a gradient \(f'(x)\) at a point.
ใช้เมื่อใด: Checking calculus answers, or where only a numerical value is needed.
ขั้นตอน
Use the GDC's numeric integral / derivative function with the limits or the point.
ข้อควรระวังในการสอบ: Use a GDC from the IB-approved list in examination mode. Some papers do not permit a calculator. Always show your reasoning.
Statistics & probability distributions
Graphical calculator / GDC (exam mode)
วัตถุประสงค์: 1-var/2-var statistics, linear regression, and cumulative binomial / normal / Poisson probabilities without tables.
ใช้เมื่อใด: Statistics questions and hypothesis tests.
ขั้นตอน
Enter data in the statistics editor, or use the distribution menu (binomial cdf, normal cdf, …).
ข้อควรระวังในการสอบ: Use a GDC from the IB-approved list in examination mode. Some papers do not permit a calculator. Always show your reasoning.
ข้อผิดพลาดที่พบบ่อย
1highคะแนนที่เกี่ยวข้อง: 2Resource management and sustainable production
Confusing the waste mitigation strategies of reconditioning and re-engineering.
วิธีหลีกเลี่ยง: Remember that reconditioning restores an old product to look and perform as new without major design changes, whereas re-engineering involves redesigning components or workflows to improve or alter the product's performance.
2highคะแนนที่เกี่ยวข้อง: 3Sustainability
Using vague, colloquial terms like 'environmentally friendly' or 'raising awareness' instead of syllabus-defined keywords.
วิธีหลีกเลี่ยง: Deploy precise syllabus terms such as 'dematerialization', 'decoupling', 'cradle-to-cradle loop', or 'reducing material throughput'. Vague phrasing is explicitly blocked by markschemes.
3mediumคะแนนที่เกี่ยวข้อง: 1Innovation and design
Failing to write a descriptive second sentence in 2-mark 'Outline' command-word questions.
วิธีหลีกเลี่ยง: Apply the 'ID + Dev' rule: use your first sentence to clearly state or identify the factor, and your second sentence to explain the mechanism, cause-and-effect relationship, or consequence.
4highคะแนนที่เกี่ยวข้อง: 4Modelling
Writing unbalanced answers for the 9-mark extended response questions in Paper 2 Section B.
วิธีหลีกเลี่ยง: Structure your essay into three distinct, balanced parts under clear sub-headings matching the three prompts (e.g., Materials, Pollution, and Energy) to avoid being capped at low mark bands.
5mediumคะแนนที่เกี่ยวข้อง: 2Commercial production
Confusing Quality Assurance (QA) with Quality Control (QC).
วิธีหลีกเลี่ยง: Define QA as a proactive, process-oriented system focused on designing stable workflows to prevent defects, and QC as a reactive, product-oriented system focused on detecting defects through testing.
6mediumคะแนนที่เกี่ยวข้อง: 2Raw material to final product
Confusing physical properties (such as mass and density) with mechanical properties (such as toughness and hardness) during material selection analysis.
วิธีหลีกเลี่ยง: Remember physical properties describe the material's basic physical state under no load (density, mass, electrical resistivity), whereas mechanical properties describe how the material behaves under applied physical forces (toughness, hardness, tensile/compressive strength).