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Hannah Aldous

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Transition to university

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From users who are members of Transition to university :

Christian Lawson-Perfect	said	Ready to use	7 years, 3 months ago
Hannah Aldous	said	Needs to be tested	7 years, 4 months ago
Vicky Hall	said	Has some problems	7 years, 4 months ago
Lauren Richards	said	Has some problems	7 years, 4 months ago

History

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Christian Lawson-Perfect 5 years, 6 months ago

Saved a checkpoint:

Replaced JavaScript marking with pattern restrictions.

Restore this checkpoint

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Christian Lawson-Perfect 7 years, 3 months ago

Gave some feedback: Ready to use

○

Christian Lawson-Perfect 7 years, 3 months ago

Saved a checkpoint:

I've changed the parts so:

part a always has two negative roots

part b always has one positive root and one negative

part c is the difference of two squares.

I don't think there was any point in the version which had a constant on the RHS.

I've added a marking script to check that the student's answer is factorised, rather than using string restrictions.

Restore this checkpoint

○

Elliott Fletcher 7 years, 4 months ago

Published this.

○

Hannah Aldous 7 years, 4 months ago

Gave some feedback: Needs to be tested

○

Christian Lawson-Perfect 7 years, 4 months ago

Gave some feedback: Has some problems

○

Christian Lawson-Perfect 7 years, 4 months ago

Saved a checkpoint:

You need to write a feedback message to show when the student doesn't use brackets.

I got $x^2-16$ for part b, which I'd solve by noticing it's the difference of two squares. Can you make sure the coefficient $x$ is non-zero?

I'd spin part b into its own question: first factorise, then write down the roots.

Restore this checkpoint

○

Hannah Aldous 7 years, 4 months ago

Gave some feedback: Needs to be tested

○

Vicky Hall commented 7 years, 4 months ago

I think this question should be renamed to 'factorising quadratic equations with $x^2$ coefficient $1$, and your other question (Factoring quadratics with larger coefficients) should be renamed 'factorising quadratic equations with $x^2$ coefficient greater than $1$.

There should be another line in the statement that shows how to solve the equation if it factorises to $(x+m)(x+n)=0$, as you ask the student to solve in the final part of the question.

In part a), I think it's a good idea to have a difference of two squares example to get students to think about how the equation can sometimes look a bit different. However, I think this should be moved to a subpart iii), and subpart i) should have a straightforward quadratic that looks exactly like the general form $ax^2+bx+c$.

○

Vicky Hall 7 years, 4 months ago

Gave some feedback: Has some problems

○

Hannah Aldous 7 years, 4 months ago

Gave some feedback: Needs to be tested

○

Lauren Richards 7 years, 4 months ago

Gave some feedback: Has some problems

○

Lauren Richards commented 7 years, 4 months ago

MAIN PARTS

There is a "$" sign in the statement.

MAYBE suggest the form to answer the question in in part a) but then again if they have read the statement, they should know which form to have it in so up to you really.

I think you should put a full stop after the formula in part b) and then start "input" with a capital letter.

ADVICE

No comma needed after "obtain" in part a)i).

Part b is fine!

Great question!

○

Hannah Aldous 7 years, 5 months ago

Gave some feedback: Needs to be tested

○

Hannah Aldous 7 years, 5 months ago

Created this.

Name	Status	Author	Last Modified
Factorising Quadratic Equations with $x^2$ Coefficients of 1	Ready to use	Hannah Aldous	20/11/2019 14:39
Solving Quadratic Equations with $x^2$ Coefficients of 1 by Factorising	Should not be used	Hannah Aldous	20/11/2019 14:42
Katherine's copy of Factorising Quadratic Equations with $x^2$ Coefficients of 1	draft	Katherine Tomlinson	02/08/2017 12:44
Peter's copy of Factorising Quadratic Equations with $x^2$ Coefficients of 1	draft	Peter Knowles	12/09/2017 12:29
MATH6058 Factorising Quadratic Equations with $x^2$ Coefficients of 1	draft	Catherine Palmer	27/01/2020 17:30
Ida's copy of Factorising Quadratic Equations with $x^2$ Coefficients of 1	draft	Ida Landgärds	13/04/2018 09:15
Ida's copy of Solving Quadratic Equations with $x^2$ Coefficients of 1 by Factorising	Doesn't work	Ida Landgärds	19/04/2018 12:00
løs og faktorisere andregradslikninga	draft	Ida Landgärds	02/12/2020 15:42
spørsmål 6	draft	Ida Landgärds	02/12/2020 15:42
Quadratic Formula	draft	Blathnaid Sheridan	19/09/2024 11:51
Blathnaid's copy of spørsmål 6	draft	Blathnaid Sheridan	02/12/2020 15:42
Blathnaid's copy of spørsmål 6	draft	Blathnaid Sheridan	02/12/2020 15:42
Ed's copy of Factorising Quadratic Equations with $x^2$ Coefficients of 1	draft	Ed Southwood	08/08/2022 10:18
Factorising Quadratic Expressions	draft	Ed Southwood	08/08/2022 10:18
Simon's copy of Factorising Quadratic Equations with $x^2$ Coefficients of 1	draft	Simon Thomas	07/03/2019 09:52
what the heck?	draft	John Wick	30/05/2019 11:33
Factorizing Quadratic Equations with $x^2$ Coefficients of 1	draft	Xiaodan Leng	10/07/2019 21:45
Factorizing Quadratic Equations with $x^2$ Coefficients of 1	draft	Xiaodan Leng	10/07/2019 21:45
Musa's copy of 3 Factorising Quadratic Equations with $x^2$ Coefficients of 1	draft	Musa Mammadov	27/06/2023 01:26
Ugur's copy of Factorising Quadratic Equations with $x^2$ Coefficients of 1	Ready to use	Ugur Efem	08/11/2021 16:44
Factorising quadratics EXAM	Ready to use	Yvonne Wancke	17/04/2023 11:42
Factorising quadratics S1MT2	Ready to use	Yvonne Wancke	22/03/2023 11:35
AD1 Factorising a Quadratic (a=1)	Ready to use	Andrew Neate	09/04/2024 15:13

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This question is used in the following exams:

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History

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Checkpoint description

Christian Lawson-Perfect 5 years, 6 months ago

Christian Lawson-Perfect 7 years, 3 months ago

Christian Lawson-Perfect 7 years, 3 months ago

Elliott Fletcher 7 years, 4 months ago

Hannah Aldous 7 years, 4 months ago

Christian Lawson-Perfect 7 years, 4 months ago

Christian Lawson-Perfect 7 years, 4 months ago

Hannah Aldous 7 years, 4 months ago

Vicky Hall commented 7 years, 4 months ago

Vicky Hall 7 years, 4 months ago

Hannah Aldous 7 years, 4 months ago

Lauren Richards 7 years, 4 months ago

Lauren Richards commented 7 years, 4 months ago

Hannah Aldous 7 years, 5 months ago

Hannah Aldous 7 years, 5 months ago

Error in variable testing condition

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