<p>An unseen pair of practice exams for new OCR J277 Computer Science spec.</p> <p>Includes…</p> <ul> <li>Paper 1 - 1 hour - 55 Marks</li> <li>Paper 2 - 1 hour - 55 Marks</li> <li>Mark schemes for both</li> <li>Student analysis sheet for both</li> </ul> <p>These are not full 1h30m exams as they are designed for use in a timetabled lesson before mocks.</p>

<p>The two searhcing algorithms OCR GCSE 2.1 Computing Science as interactive html documents for students to explore.<br /> Different numbers of items to search through, as well as the expected exam style output for each type.</p> <ul> <li>Linear Search</li> <li>Binary Search</li> </ul>

<p>Select all the squares that match the description. Self-differentiated activity as it gets progressively harder when you get questions correct. Starts at “Blue only” style questions, then onto “Red or 1” and “Green and 2”, then onto “Green and not 2” and beyond. Requires internet connection.</p>

<p>The three sorting algorithms for OCR GCSE 2.1 Computing Science as interactive html documents for students to explore.<br /> Different numbers of items to sort, as well as the expected exam style output for each type.</p> <ul> <li>Bubble Sort</li> <li>Insertion Sort</li> <li>Merge Sort</li> </ul>

<p>This tool creates 10 by 10 one-bit-per-pixel or two-bits-per-pixel binary images from a binary string of 0 and 1s. The choice of colour palette is left to the user with a default black and white option.</p> <p>Works well with snipping tool to use as part of a computing science digital portfolio.</p> <p>could be used in a wide variety of lessons within the context of data representation.</p>

Linked to SSS triangles, this will practice using the compass on a smaller scale and joining up the intersecting arcs to form the spines on a stegosaurus or the teeth/fins of the shark. All lengths are given on the sheet. Differentiated as the shark sheet is harder.

NC level 5/6. Treasure hunt style. Find the smoothie which tells you the ingredients and their ratios then find the questions about it, both finding the total given a part or finding a part given a total. Answers included.

Place a variety of ships on the grid and either you tell them a bearing and distance (with some scale) to sink their fleet. could be pair game or reading out where the missiles go, Can be made harder/easier with different scales.

Substitute positive values into a selection of formulae and then simplify worksheet. First page has correctly laid out examples with each. Second page replaces examples with questions and has a few more. NC level 6

Probability story board for low ability year 7 / NC level 3 / NC level 4. Students write a sentence and then draw a picture as a story board, the sentence should include probability terminology,

Using 4 angle rules (straight line, triangle, quadrilateral, vertically opposite), find out the first angle to help you with the second, use the second to help work out the third and so on. Includes answers with reasons.<br /> <br /> This worked well with a mid/high level year 7 group who could independently apply each rule to a separate situation.

3 activities on different sheets: fill in the symbol, MWB true or false with variety of options (with or without &gt;= and

Conversion between different imperial units (no metric). Differentiated. Good for general conversion skills or multiplication and division exercise. Answers attached. Cheat sheet has all conversions needed, follow the arrows.