Cornell notes template in LaTeX based on https://tex.stackexchange.com/questions/70570/cornell-notes-a-lyx-or-latex-solution-needed

cornell-notes-template.tex

\documentclass[a4paper]{article}                                                                                     
\pagestyle{plain}
\usepackage{calc}
\usepackage[top=0.25in,bottom=0.75in,left=0.5in,right=0.5in]{geometry}
\usepackage{tikz}

\newlength{\wholeboxwd}
    \setlength{\wholeboxwd}{0.99\textwidth}
\newlength{\wholeboxht}
    \setlength{\wholeboxht}{0.95\textheight}
%
\newlength{\cuewd}
    \setlength{\cuewd}{0.3\wholeboxwd}
\newlength{\summht}
    \setlength{\summht}{0.2\wholeboxht}
\newlength{\cgridht}
    \setlength{\cgridht}{\wholeboxht-\summht}
\newlength{\cgridwd}
    \setlength{\cgridwd}{\wholeboxwd-\cuewd}
\newlength{\xorig}
\newlength{\yorig}
\setlength{\xorig}{0cm}
\setlength{\yorig}{0cm}


\begin{document}

\begin{center}
\begin{tikzpicture}
\draw[step=.5cm,gray!80,thin] (\cuewd,\summht) grid (\wholeboxwd,\wholeboxht);
%% Optional:
%\draw[step=.25cm,gray!30,thin] (\cuewd,\summht) grid (\wholeboxwd,\wholeboxht);      
% Summary, top:
\draw [line width=.2pt] (\xorig,\summht) -- (\wholeboxwd,\summht);
% Grid, left:
\draw [line width=.2pt] (\cuewd,\summht) -- (\cuewd,\wholeboxht);
% Draw the big box:
\draw (\xorig,\yorig) rectangle (\wholeboxwd,\wholeboxht);
\node[anchor=west] at (0.25,\wholeboxht-1em) {\textbf{Questions}};
\node[anchor=west] at (0.25,\summht-1em){\textbf{Summary}};
\node[anchor=west,fill=white] at (\cuewd+1em,\wholeboxht-1em) {\textbf{\ Notes\ }};
\node[anchor=west] at (0.25,\wholeboxht+2em){%
    \parbox[t]{\cuewd}{Subject:\par\smallskip Date:}%
};
\end{tikzpicture}
\end{center}

\end{document}