Number Pattern Trail

{
  "finish": "Excellent work. You noticed number rules, followed patterns and explained how the numbers changed.",
  "steps": [
    {
      "question": "Kato starts at 0 and counts forward in fives. Which number comes next?",
      "card": "0, 5, 10, 15, ____",
      "choices": ["18", "20", "25"],
      "answer": 1,
      "good": "Correct. The pattern adds 5 each time.",
      "help": "Count on five more from 15."
    },
    {
      "question": "Which number comes next when we count forward in tens?",
      "card": "45, 55, 65, ____",
      "choices": ["70", "75", "80"],
      "answer": 1,
      "good": "Yes. 65 plus 10 is 75.",
      "help": "Each number increases by one ten."
    },
    {
      "question": "Continue the pattern.",
      "card": "320, 340, 360, ____",
      "choices": ["370", "380", "400"],
      "answer": 1,
      "good": "Correct. The rule is add 20.",
      "help": "Look at 320 to 340. How much was added?"
    },
    {
      "question": "A school receives books in groups of one hundred. What number comes next?",
      "card": "1,200, 1,300, 1,400, ____",
      "choices": ["1,410", "1,500", "2,400"],
      "answer": 1,
      "good": "Correct. The pattern increases by 100 each time.",
      "help": "Look at 1,200 to 1,300. The number goes up by one hundred."
    },
    {
      "question": "This pattern goes backwards. Which number comes next?",
      "card": "300, 280, 260, ____",
      "choices": ["250", "240", "230"],
      "answer": 1,
      "good": "Excellent. The pattern subtracts 20 each time.",
      "help": "300 to 280 goes down by 20. Do the same again."
    },
    {
      "question": "What is the rule for this pattern?",
      "card": "100, 125, 150, 175",
      "choices": ["add 10", "add 25", "add 50"],
      "answer": 1,
      "good": "Correct. Each number is 25 more than the one before.",
      "help": "Compare 100 and 125 first."
    },
    {
      "question": "Find the missing number.",
      "card": "712, 702, 692, ____, 672",
      "choices": ["682", "686", "690"],
      "answer": 0,
      "good": "Yes. The pattern subtracts 10 each time.",
      "help": "712 to 702 goes down by one ten."
    },
    {
      "question": "Which number comes next?",
      "card": "4, 8, 12, 16, ____",
      "choices": ["18", "20", "24"],
      "answer": 1,
      "good": "Correct. The pattern adds 4 each time.",
      "help": "Count forward four more from 16."
    },
    {
      "question": "Kato saves 500 shillings each week. How much will he save in the fourth week?",
      "card": "500, 1,000, 1,500, ____",
      "choices": ["1,800", "2,000", "2,500"],
      "answer": 1,
      "good": "Correct. He adds 500 shillings each week.",
      "help": "Add another 500 to 1,500."
    },
    {
      "question": "Continue the number trail.",
      "card": "999, 1,009, 1,019, ____",
      "choices": ["1,029", "1,109", "1,119"],
      "answer": 0,
      "good": "Brilliant. The pattern adds 10 each time.",
      "help": "1,009 to 1,019 is one ten more."
    },
    {
      "question": "A bus travels 50 metres farther at each stop. What number comes next?",
      "card": "150, 200, 250, ____",
      "choices": ["275", "300", "350"],
      "answer": 1,
      "good": "Correct. The bus travels 50 metres farther each time.",
      "help": "Add 50 to 250."
    },
    {
      "question": "Independent check: Which number comes next?",
      "card": "605, 595, 585, ____",
      "choices": ["575", "580", "595"],
      "answer": 0,
      "good": "Correct. The pattern subtracts 10 each time.",
      "help": "Try to find the rule before looking for help."
    },
    {
      "question": "Independent check: Complete the pattern.",
      "card": "1,250, 1,300, 1,350, ____",
      "choices": ["1,400", "1,450", "1,500"],
      "answer": 0,
      "good": "Well done. The rule is add 50.",
      "help": "Try to find how much is added from one number to the next."
    },
    {
      "question": "Independent check: Find the missing number.",
      "card": "3, 6, 9, ____, 15",
      "choices": ["10", "11", "12"],
      "answer": 2,
      "good": "Correct. The numbers increase by 3.",
      "help": "Count in threes: 3, 6, 9, 12, 15."
    },
    {
      "question": "Independent check: A shopkeeper arranges oranges in rows of 100. Which number completes the pattern?",
      "card": "2,500, 3,000, 3,500, ____",
      "choices": ["3,600", "4,000", "4,500"],
      "answer": 1,
      "good": "Excellent. The pattern increases by 500 each time.",
      "help": "Look at the jump from 2,500 to 3,000."
    }
  ]
}