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Two or More Main Ideas is a free printable Grade 5 English worksheet on finding more than one main idea and its support, aligned to Common Core standard RI.5.2. It prints 2 questions with an answer key on its own sheet of paper, in 25 versions, 22 of them with different questions, so no two pupils in the class work from the same page. Print it from the browser or download it as a PDF — no account, no email.

Set 11 of 25 · the same problems every time you open this link.

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Set 1 has all 25 in a single PDF. 22 of these 25 sets ask different questions — this skill does not have 25 questions to give. The rest reorder them, so no two pupils have the same paper in front of them.

Two or More Main Ideas

RI.5.2

NameDate

Read the text, then answer the questions.

1.Read the text, then answer the questions.

Why the Thames Froze

Between 1309 and 1814 the Thames froze hard enough to walk on at least twenty-four times. Since 1814 it has not once. The usual explanation is that the climate has warmed. That is part of it, and not most of it. Old London Bridge had nineteen arches on wide stone piers. The piers took up so much of the channel that the bridge acted as a weir, slowing the water upstream almost to a standstill. Still water freezes; moving water does not. The river was also shallower and wider then, spreading over land that has since been embanked. Shallow water loses heat faster. Old London Bridge was demolished in 1831. The embankments were built between 1862 and 1874. The river that flows through London now is narrower, deeper and faster than the one that froze — and it would not freeze in a colder winter than any of those.

  1. 1. Determine two main ideas of this text and explain how details support each.
2.Read the text, then answer the questions.

Why the Rails Are That Far Apart

Standard gauge is 4 feet 8½ inches. It is a strange number, and the reason is historical rather than engineering. Early railways were built by people who had built tramways for collieries, and those had used the wheel spacing of the carts already in use. Nobody chose it; it was inherited. Isambard Kingdom Brunel did choose. He built the Great Western at 7 feet ¼ inch, and by most measures it was better: faster, steadier, and able to carry more. He lost anyway. By the 1840s, more of the network was already standard gauge, and a train cannot run on a track it does not fit. Parliament settled it in 1846. Between 1846 and 1892 the Great Western converted its entire route. The final conversion took a single weekend and about four thousand men. The best design does not always win. The one that connects to everything else does.

  1. 1. Determine two main ideas of this text and explain how details support each.

LessonPrint · RI.5.2 · Set 11 · free to copy for classroom use

Answer key — Two or More Main Ideas

Set 11. Prints on its own sheet.

  1. 1.1. First, the bridge acted as a weir and slowed the water — supported by the nineteen arches. Second, the river's shape mattered — supported by the shallower, wider channel and the embankments.
  2. 2.1. First, standard gauge was inherited, not designed — supported by the colliery carts. Second, compatibility beat quality — supported by Brunel losing despite a better gauge.

More practice for RI.5.2

Find two or more main ideas, show their support, and summarise.

Teaching this next? Two Main Ideas and a Summary is the 40-minute plan for it, with the misconceptions to expect.

All Grade 5 worksheets

Last reviewed 2026-09-05. Aligned to RI.5.2 of the Common Core State Standards for English language arts.