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R in 3 Months (Spring 2026)

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View code shown in video
---
title: "Portland Public Schools Math Proficiency Report"
format: 
  revealjs:
    theme: dracula
    logo: portland-public-schools-logo.svg
    footer: "PPS Math Proficiency Report"
execute: 
  echo: false
  warning: false
  message: false
---

```{r}
library(tidyverse)
library(here)
library(flextable)
library(gt)
library(scales)
library(marquee)
library(ggrepel)
```

# Introduction {background-image="assets/kids-laughing.jpg"}

:::: {.columns}

::: {.column width="50%"}
![Portland Public Schools](portland-public-schools-logo.svg){width=300px fig-align="center" fig-alt="Portland Public Schools logo"}
:::

::: {.column width="50%"}
This is a report on math proficiency results in [Portland Public Schools (PPS)](https://www.pps.net/). The PPS mission statement is as follows:

> We provide rigorous, high-quality academic learning experiences that are inclusive and joyful. We disrupt racial inequities to create vibrant environments for every student to demonstrate excellence.^[https://www.pps.net/about/portland-public-schools-information/overview]
:::

::::

# Plot

```{r}
third_grade_math_proficiency <-
  read_rds(here("data/third_grade_math_proficiency.rds")) |>
  select(
    academic_year,
    school,
    school_id,
    district,
    proficiency_level,
    number_of_students
  ) |>
  mutate(
    is_proficient = case_when(
      proficiency_level >= 3 ~ TRUE,
      .default = FALSE
    )
  ) |>
  group_by(academic_year, school, district, school_id, is_proficient) |>
  summarize(number_of_students = sum(number_of_students, na.rm = TRUE)) |>
  ungroup() |>
  group_by(academic_year, school, district, school_id) |>
  mutate(
    percent_proficient = number_of_students /
      sum(number_of_students, na.rm = TRUE)
  ) |>
  ungroup() |>
  filter(is_proficient == TRUE) |>
  select(academic_year, school, district, percent_proficient) |>
  rename(year = academic_year)

```

```{r}
theme_dk <- function() {
  theme_minimal(base_family = "Geist") +
    theme(
      axis.title = element_blank(),
      legend.position = "none",
      panel.grid = element_blank(),
      plot.title = element_marquee(width = 1),
      plot.title.position = "plot"
    )
}
```


```{r}
#| fig-alt: Chart showing growth in math proficiency for PPS schools from 2018-2019 to 2021-2022
#| fig-cap: Chart showing growth in math proficiency for PPS schools from 2018-2019 to 2021-2022

top_growth_school <-
  third_grade_math_proficiency |>
  filter(district == "Portland SD 1J") |>
  group_by(school) |>
  mutate(
    growth_from_previous_year = percent_proficient - lag(percent_proficient)
  ) |>
  ungroup() |>
  slice_max(
    order_by = growth_from_previous_year,
    n = 1
  ) |>
  pull(school)


plot_title <-
  marquee_glue(
    "{.orange **{top_growth_school}**} showed large growth 
        in math proficiency over the last two years"
  )

third_grade_math_proficiency |>
  filter(district == "Portland SD 1J") |>
  mutate(
    highlight_school = case_when(
      school == top_growth_school ~ "Y",
      .default = "N"
    )
  ) |>
  mutate(
    school = fct_relevel(
      school,
      top_growth_school,
      after = Inf
    )
  ) |>
  mutate(
    percent_proficient_formatted = percent(percent_proficient, accuracy = 1)
  ) |>
  mutate(
    percent_proficient_formatted = case_when(
      highlight_school == "Y" & year == "2021-2022" ~
        str_glue(
          "{percent_proficient_formatted} of students
          were proficient
          in {year}"
        ),
      highlight_school == "Y" & year == "2018-2019" ~
        percent_proficient_formatted
    )
  ) |>
  ggplot(
    aes(
      x = year,
      y = percent_proficient,
      color = highlight_school,
      group = school,
      label = percent_proficient_formatted
    )
  ) +
  geom_line() +
  geom_text_repel(
    hjust = 0,
    lineheight = 0.9,
    direction = "x",
    family = "Geist"
  ) +
  scale_color_manual(
    values = c(
      "Y" = "orange",
      "N" = "gray80"
    )
  ) +
  scale_x_discrete(
    expand = expansion(add = c(0, 0.5))
  ) +
  scale_y_continuous(
    labels = percent_format(),
    limits = c(0, 1)
    # expand = expansion(add = c(0.1, 0.2))
  ) +
  annotate(
    geom = "text",
    x = 2.02,
    y = 0.6,
    hjust = 0,
    lineheight = 0.9,
    color = "gray70",
    label = str_glue(
      "Each gray line
    represents one
    school"
    )
  ) +
  labs(
    title = plot_title
  ) +
  theme_dk()
```

```{r}
third_grade_math_proficiency_wide <-
  read_rds(here("data/third_grade_math_proficiency_dichotomous.rds")) |>
  filter(district == "Portland SD 1J") |>
  filter(
    school %in%
      c(
        "Abernethy Elementary School",
        "Ainsworth Elementary School",
        "Alameda Elementary School",
        "Arleta Elementary School",
        "Atkinson Elementary School"
      )
  ) |>
  select(year, school, percent_proficient) |>
  arrange(school) |>
  pivot_wider(
    id_cols = school,
    names_from = year,
    values_from = percent_proficient
  )
```

{{< pagebreak >}}

# Table

The following table shows math proficiency in 2018-2019 and 2021-2022 for all PPS schools. If you want to see `r top_growth_school`, you can use the search bar to find it.

```{r}
third_grade_math_proficiency_wide_full <-
  read_rds(here("data/third_grade_math_proficiency_dichotomous.rds")) |>
  filter(district == "Portland SD 1J") |>
  select(year, school, percent_proficient) |>
  arrange(school) |>
  pivot_wider(
    id_cols = school,
    names_from = year,
    values_from = percent_proficient
  )
```

```{r}
third_grade_math_proficiency_wide_full |>
  gt() |>
  cols_label(school = "School") |>
  fmt_percent(
    columns = 2:3,
    decimals = 0
  )
```

Your Turn

  1. Turn your report into a Revealjs presentation

  2. Put content in columns and using incremental reveal

  3. Adjust the look-and-feel of your presentation by adding a logo and footer text, adjusting slide backgrounds, and using a custom theme

  4. Practice presenting using Revealjs slides

Refer to the Quarto Revealjs documentation to help.

Learn More

To start learning about Revealjs, check out this page on the Quarto docs site.

If you want to see custom Revealjs themes, check out the Extensions page.

Have any questions? Put them below and we will help you out!

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Course Content

144 Lessons