Mathematical Christmas Tree Mathematical Christmas TreeDescription and Materials Description This puzzle is based on the “Triangle with a Difference”. You can play with it using paper and pencil or printing out our Christmas template. Materials Cards Pencils Template here Instructions INSTRUCTIONS Cut out your Christmas tree decorations Hang your ornaments on the tree Place the numbers 1 to 15 so that each ball ornament is the difference between the two ornaments immediately below it, to left and right. The first three ornaments have been done for you. 5 is the difference between 9 and 4. (9 – 4 = 5) Discuss strategies Check out this link for extensions: https://www.mathsweek.ie/2023/maths-at-home-activities/#activity15triangle Please, share your creations on twitter using the #adventSTEAM We are looking forward to seeing what you’ve created! Back to Advent CalendarWhat’s behind? STEM tips What’s behind? STEM tips This card game involving subtraction will have participants develop their problem-solving strategies. 2020-12-16T16:40:16+00:00|Categories: ADVENT|Tags: #maths, Advent, adventSTEM, Puzzle, STEAM| Share with Social Media :) FacebookTwitterRedditLinkedInTumblrPinterest Related Posts D24 – Riddle6 D24 – Riddle6 D23 – Craft3 D23 – Craft3 D22 – Riddle5 D22 – Riddle5 D21 – Shapes D21 – Shapes D20 – Twins D20 – Twins D19 – Riddle4 D19 – Riddle4