GCSE OCR GAteway Science Specification (Grade 9- 1)
B4 - Ecosystems
Lesson includes:
Starter, main and plenary
Three tasks for students to practice draw their pyramids of numbers and biomass
All tasks include the answers

Differentiated number pyramids worksheet on multiplying fractions with answers.
Red - Completing pyramids by multiplying.
Amber - Completing pyramids by multiplying and dividing.
Green - Problem solving with pyramids.
Like this resource? Try these bundles of Number Pyramids worksheets…
Number Pyramids Bundle A
Number Pyramids Bundle B
Number Pyramids Bundle C

Number pyramids are a challenging and engaging way to learn lots of different maths topics. Values in lower layers of the pyramid determine the values above them with the goal to completely fill pyramid. Each worksheet is differentiated (Red, Amber and Green) with the last section tailored towards problem solving and enhancing a student’s mathematical resilience.
This bundle contains number pyramids worksheets on…
Fractions, Decimals and Percentages
Adding Decimals
Multiplying Surds
HCF
LCM
Difference Between
Half-Way Between

Interactive Excel program that gets students working with number pyramids. Includes method and practice sheets. There are also two levels of challenge that can be used with older students to demonstrate the the advantages of using equations for solving problems. Ideal for whole-class use with a projector, or for individual/small group work. To run the program you will need to enable macros by clicking on Tools\Macro\Security and setting to medium or low, then restart Excel. If in doubt, consult your IT technician. If you use this resource, please take the time to review it. Any comments will be carefully noted.

Differentiated number pyramids worksheet containing positive whole numbers with answers.
Red - Completing pyramids by adding.
Amber - Completing pyramids by adding and subtracting.
Green - Problem solving with pyramids.
Like this resource? Try these bundles of Number Pyramids worksheets…
Number Pyramids Bundle A
Number Pyramids Bundle B
Number Pyramids Bundle C

Number Pyramids
A set of 5 worksheets, each varying in difficulty with answers that use Number Pyramids as a way to practice addition and subtraction of numbers. Students will need to think logically to fill in the missing numbers.
There are also 2 extra blank worksheets included, which can be used by the teacher or the students to create extra problems to solve.
Number Pyramids are built up in such a way, that the sum of the values of two neighboring bricks results in the value of the brick lying above them.
All answer keys are included for easing grading.
My students love doing these types of activities.
Thank you for checking my resources.

Simple worksheet used to introduce pyramids of numbers and biomass. Students will need three different coloured pencils or felt pens, a ruler and pencil to complete.

A differentiated number pyramids worksheet on multiplying and dividing algebra with answers.
Red - Completing pyramids by multiplying.
Amber - Completing pyramids by multiplying and dividing.
Green - Problem solving with pyramids.
Like this resource? Try these bundles of Number Pyramids worksheets…
Number Pyramids Bundle A
Number Pyramids Bundle B
Number Pyramids Bundle C

A complete lesson on number pyramids, with an emphasis on pupils forming and solving linear equations. An excellent way of getting pupils to consolidate methods for solving in an unfamiliar setting, and for them to think mathematically about what they are doing.
Activities included:
Starter:
Slides to introduce how number pyramids work, followed by a simple worksheet to check pupils understand (see cover slide)
Main:
A prompt to a harder question for pupils to try. They will probably use trial and improvement and this will lead nicely to showing the merits of a direct algebraic method of obtaining an answer.
A second, very similar question for pupils to try. The numbers have simply swapped positions, so there is some value in getting pupils to predict how this will impact the answer.
A prompt for pupils to investigate further for themselves, along with a few suggested further lines of inquiry. There are lots of ways the task could be extended, but my intention is that this particular lesson would probably focus more on pupils looking at combinations by rearranging a set of chosen numbers and thinking about what will happen as they do this. I have made two other number pyramid lessons with slightly different emphases.
Plenary:
A prompt to a similar looking question that creates an entirely different solution, to get pupils thinking about different types of equation.
Please review if you buy as any feedback is appreciated!

These pyramids require children to use their addition and number skills to make different totals. Each box must be the product of the 2 boxes below it. This requires lots of maths skills and problem solving. Can be differentiated many ways to make many totals at the top of the pyramids as all number boxes are editable. Fun activity to reinforce addition.
Also included blank pyramids for the children to make their own totals as an extension.

Differentiated number pyramids worksheet on adding fractions with answers.
Red - Completing pyramids by adding.
Amber - Completing pyramids by adding and subtracting.
Green - Problem solving with pyramids.
Like this resource? Try these bundles of Number Pyramids worksheets…
Number Pyramids Bundle A
Number Pyramids Bundle B
Number Pyramids Bundle C

Number pyramids are a challenging and engaging way to learn lots of different maths topics. Values in lower layers of the pyramid determine the values above them with the goal to completely fill pyramid. Each worksheet is differentiated (Red, Amber and Green) with the last section tailored towards problem solving and enhancing a student’s mathematical resilience.
This bundle contains number pyramids worksheets on…
Adding Integers try for free
Adding Negative Numbers
Adding Fractions
Multiplying Fractions
Collecting Terms
Multiplying Terms
Algebraic Fractions

Differentiated worksheet completing negative number pyramids with answers.
Red - Completing pyramids by adding.
Amber - Completing pyramids by adding and subtracting.
Green - Problem solving with pyramids.
Like this resource? Try these bundles of Number Pyramids worksheets…
Number Pyramids Bundle A
Number Pyramids Bundle B
Number Pyramids Bundle C

Differentiated number pyramid worksheet on decimals with answers.
Red - Completing pyramids by adding.
Amber - Completing pyramids by adding and subtracting.
Green - Problem solving with pyramids.
Like this resource? Try these bundles of Number Pyramids worksheets…
Number Pyramids Bundle A
Number Pyramids Bundle B
Number Pyramids Bundle C

Differentiated number pyramids worksheet on algebraic fractions with answers.
Red - Completing pyramids by adding.
Amber - Completing pyramids by adding and subtracting.
Green - Problem solving with pyramids.
Like this resource? Try these bundles of Number Pyramids worksheets…
Number Pyramids Bundle A
Number Pyramids Bundle B
Number Pyramids Bundle C

A complete lesson on number pyramids, with an emphasis on pupils forming and solving linear equations. An excellent way of getting pupils to think about equations in an unfamiliar setting, and to create their own questions and conjectures.
Activities included:
Starter:
A mini-investigation on three-tier number pyramids, to set the scene. One combination is best dealt with using a linear equation, and sets pupils up to access the more challenging task to come.
Main:
A prompt for pupils to consider four-tier number pyramids. Although this task has the potential to be extended in different ways, I have provided an initial focus and provided some responses that pupils could give, so you can get a clear idea of how the investigation might progress. I would spend the rest of the lesson responding to pupils’ work and questions, and probably get pupils to make posters of their findings or discuss their work with other pupils.
Please review if you buy as any feedback is appreciated!

An open-ended lesson on number pyramids, with the potential for pupils to practice addition and subtraction with integers, decimals, negatives and fractions, form and solve linear equations in two unknowns and create conjectures and proofs.
I used this lesson for an interview and got the job, so it must be a good one!
The entire lesson is built around the prompt I’ve uploaded as the cover slide. I have provided detailed answers for some of the responses that pupils could give, so you can get a clear idea of how the investigation might progress. I would spend the lesson responding to pupils’ work and questions, and probably get pupils to make posters of their findings or discuss their work with other pupils.
Suitable for a range of abilities.
Please review if you buy as any feedback is appreciated!

Students practice adding and subtracting integers and decimals in these pyramids. There are 6 different pyramids in total--3 with integers and 3 with decimals, with different levels of skill and/or logic needed to solve. In level 1 students have the entire bottom level of the pyramid filled in and need to add the 2 adjacent blocks to get the sum which is placed on the block on top of it. In level 2, students have the block on the left side completed and need to scale up and down to complete the entire pyramid. In the most challenging level, students have scattered blocks and use their logic skills to fill in the missing blocks.

Differentiated number pyramids worksheet on adding amounts of money with answers.
Red - Completing pyramids by adding.
Amber - Completing pyramids by adding and subtracting.
Green - Problem solving with pyramids.
Like this resource? Try these bundles of Number Pyramids worksheets…
Number Pyramids Bundle A
Number Pyramids Bundle B
Number Pyramids Bundle C