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\begin{document}
\hyphenation{korrelasjons-koeffisienten opp-daga inn-data eksi-sten-sen}

\title{Learning mathematics through classroom interaction}
\author{
 \parbox{0.4\textwidth}{\centering%
   Hans Georg Schaathun \\
   $\langle$georg@schaathun.net$\rangle$}
   \hspace{2em}
 \parbox{0.4\textwidth}{\centering%
   Welie Annett Schaathun \\
   was@schaathun.net}
   \\
   \normalsize
      NTNU, Avdeling for Ingeniør- og Realfag \\
   \normalsize
      Postboks 1517, N-6025 Ålesund, Norway
}

\maketitle

\begin{abstract}
   We need an abstract, with text.
\end{abstract}

\section{Introduction}

Abeysekera and Dawsons~\cite{ad2014flip} define flipped classroom
as follows:
\begin{quotation}
\noindent\itshape
   In a flipped classroom, the information-transmission component
   of a traditional face-to-face lecture (...)
   is moved out of class time.
   In its place are active, collaborative tasks.
\end{quotation}

\begin{table}
\begin{center}
\begin{tabular}{c}
  Test
\end{tabular}
\end{center}
\caption{Foo bar}
\label{tab:amount}
\end{table}

Table~\ref{tab:amount} gives information.


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