A complete IB DP Physics skill pack on significant figures and rounding (SL and HL, first assessment 2025), offered free as a full-quality sample of the premium YPhysics catalogue: a rules reference, six worked examples and more than 60 practice questions, all answered. Not a cut-down teaser but the whole pack, nothing watermarked and nothing held back.
Significant figures are a technique the syllabus assumes but no topic owns, and the IB asks for it to be practised inside the topics that need it. This is not a taught unit: it is reference and remedial material that supplements integrated teaching, for the first weeks or for a student losing marks on precision rather than physics.
This pack is worked, not taught: the 2 hours shown is student working time across the practice bank, not classroom delivery time. It sits as two sittings of about an hour.
What students learn:
- Counting significant figures and decimal places, every kind of zero included, and the ambiguous 55 000
- Rounding once from the original value, including a carried 9: 0.00030990 to 3 s.f. is 0.000310
- Reading the answer back: 99.997 to 3 s.f. is 100, which claims one figure, so write 1.00 x 10^2
- Decimal places for addition and subtraction, significant figures for multiplication and division
- Stating a mean to the precision the instrument supports (2.30 s, trailing zero kept)
Three tiers: A, 35 fluency items, two sets inverted so students build a number to a stated condition; B, 16 applied calculations on speed, density, momentum, energy and g from a pendulum; C, four multiple-choice items, every distractor explained, and two structured questions worth 18 marks.
IB skills (Tool 3: Mathematics): the pack teaches expressing a quantity to an appropriate number of significant figures or decimal places; students practise basic arithmetic and algebraic calculation and scientific notation.
What’s included:
- Student Worksheet (15 pages), answers stripped out, colour and printer-friendly B&W
- Teacher Key (23 pages), every answer and model solution, plus teaching notes
- The editable worksheet, a self-contained HTML file
The worksheet and the key are two projections of one source, so no answer file can drift. Grades 11-12 (ages 16-19).
Part of the A.1 Kinematics Complete Unit Bundle: every pack for the topic, 30% off buying them separately.
Related resources:
- Scientific Notation and SI Prefixes, the companion pack (free)
https://www.tes.com/teaching-resource/-13537036 - Unit Conversion, the companion on prefixes and compound units (free)
https://www.tes.com/teaching-resource/resource-13537341 - Uncertainties, where precision becomes an uncertainty
- Newton’s Second Law: F = ma, a lesson pack that quotes every answer to the right precision
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A bundle is a package of resources grouped together to teach a particular topic, or a series of lessons, in one place.
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IB DP Physics (2025) A1 Kinematics Complete Unit Bundle
The complete Topic A.1 Kinematics unit for IB DP Physics, SL and HL, first assessment 2025, bundled into one sequenced teaching unit and priced 30% below the cost of buying the packs separately. **What's in the unit** - Nine lesson packs in teaching order: Distance and Displacement, Speed and Velocity, Acceleration and Non-Uniform Motion, Graphical Analysis of Motion, SUVAT Equations I and II, Projectile Motion I and II, and Fluid Resistance. - A1.P1, a full double-period bench practical measuring the acceleration of free fall, aim to evaluation, with honest sample data. - SL and HL topic tests with AO-tagged mark schemes, for end-of-topic assessment. - Skill packs for targeted drill on scientific notation, significant figures and unit conversion. Together the lessons cover all nine understandings of Topic A.1: position, displacement, velocity and acceleration, motion graphs, the four suvat equations, projectile motion, and the qualitative effect of fluid resistance. **Every lesson pack includes:** - An editable student worksheet - A teacher key with every answer and marking point - Worked solutions with every step and its units - A questions-only assessment with IB mark allocations - A choreographed lesson deck with staged reveals **IB skills (mostly Tool 3: Mathematics)**: identifying scalars and vectors, determining rates of change, drawing and adding vectors, converting units, selecting and rearranging the suvat equations, resolving vectors into perpendicular components, interpreting and sketching motion graphs, and linearizing data. The practical adds Tool 1 experimental technique and the Inquiry skills: measuring time and length, recording and propagating uncertainties, plotting best-fit lines, and evaluating error sources. Everything ships as self-contained HTML, so worksheet and deck open in any browser with nothing to install and the worksheet is fully editable, plus colour and black-and-white PDF of every projection and the slides. SI units, IB notation and IB command terms throughout. A1.1 is free, so you can teach a whole lesson before buying. Suitable for grades 11-12 (ages 16-19) for first teaching, assessment and revision. **Also in the catalogue, sold separately:** - [Resolving Vectors, the skill pack behind the projectile lessons](https://www.tes.com/teaching-resource/-13537892) - [Uncertainties, the arithmetic the practical leans on](https://www.tes.com/teaching-resource/-13538960) - [Uncertainties on a Graph, error bars and extreme gradient lines]( https://www.tes.com/teaching-resource/-13542412) *A rating helps other teachers find this.*
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IB DP Physics (2025) IA and Paper 1B Skills Bundle
IB DP Physics skills bundle for the internal assessment and Paper 1B, SL and HL, first assessment 2025: nine skill packs, 30% off buying them separately. The internal assessment is 24 marks and 20% of the course; Paper 1B is the data-based questions, 20 marks at SL and at HL. This bundle is one investigation, design to evaluation. **What's in the bundle, in working order** - Designing the Investigation: research question, variables, method, safety (IA Criterion 1) - Significant Figures and Rounding: the number to the right figures (free) - The Units of a Quantity: SI base and derived units, homogeneity checks (free) - Uncertainties: recording a range, propagating it, percentage error - Tables, Charts and Graphs: the results table, the plot, the line of best fit - Proportionality and Scaling: the relationship read off the data, power known - Log Scales and Power Laws: logarithmic axes, the power off a log-log gradient - Uncertainties on a Graph: bars, extreme lines, gradient and intercept uncertainty - Concluding and Evaluating: the conclusion and the evaluation (IA Criteria 3 and 4) Between them the nine reach all four IA criteria: Research design, Data analysis, Conclusion and Evaluation. Log Scales and Power Laws takes the case Proportionality and Scaling stops short of: the exponent is unknown. Exponential decay is left to the topics that own it. **What this bundle is, and what it is not** The IB asks these skills to be practised inside the topics that need them, so no pack here is a taught unit of the course: it is reference, remedial and revision material that supplements integrated teaching. The packs are worked, not taught: the 35.5 hours across the nine is student working time, not classroom delivery time. Every pack carries a student worksheet with the answers stripped out, a teacher key with every item answered from the same source so no answer file can drift, and the editable worksheet as a self-contained HTML file, in colour and black-and-white PDF. 286 student pages and 401 teacher pages across the nine. IB skills in the study of physics, mostly Tool 3: Mathematics with Inquiry 1, 2 and 3: significant figures, SI units, uncertainty propagation, plotting and best-fit lines, linearizing, logarithmic scales, extreme gradients, methodology and safety, concluding and evaluating. Every pack opens in any browser, nothing to install. SI units, IB notation and IB command terms throughout. Two of the nine are free, so a pack can be worked before buying. Grades 11-12 (ages 16-19). **Also in the catalogue, sold separately:** - [Measuring the Acceleration of Free Fall, a worked investigation to practise on (free)](https://www.tes.com/teaching-resource/-13516788) - [Unit Conversion, raw readings into SI before processing (free)](https://www.tes.com/teaching-resource/resource-13537341) *A rating helps other teachers find this.*
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